1394375040 has 512 divisors, whose sum is σ = 5405184000. Its totient is φ = 338411520.

The previous prime is 1394375011. The next prime is 1394375041. The reversal of 1394375040 is 405734931.

1394375040 is a `hidden beast` number, since 139 + 437 + 50 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1394374986 and 1394375004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394375041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10177852 + ... + 10177988.

It is an arithmetic number, because the mean of its divisors is an integer number (10557000).

Almost surely, 2^1394375040 is an apocalyptic number.

1394375040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1394375040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2702592000).

1394375040 is an abundant number, since it is smaller than the sum of its proper divisors (4010808960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1394375040 is a wasteful number, since it uses less digits than its factorization.

1394375040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1394375040 is about 37341.3315241972. The cubic root of 1394375040 is about 1117.1886975774.

The spelling of 1394375040 in words is "one billion, three hundred ninety-four million, three hundred seventy-five thousand, forty".