1390954752 has 216 divisors, whose sum is σ = 4442413248. Its totient is φ = 415027200.

The previous prime is 1390954751. The next prime is 1390954781. The reversal of 1390954752 is 2574590931.

It is a happy number.

1390954752 is a `hidden beast` number, since 1 + 3 + 90 + 95 + 475 + 2 = 666.

It is a super-2 number, since 2×1390954752² = 3869510244222763008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1390954698 and 1390954707.

It is not an unprimeable number, because it can be changed into a prime (1390954751) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1799038 + ... + 1799810.

It is an arithmetic number, because the mean of its divisors is an integer number (20566728).

Almost surely, 2^1390954752 is an apocalyptic number.

1390954752 is a gapful number since it is divisible by the number (12) 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 1390954752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2221206624).

1390954752 is an abundant number, since it is smaller than the sum of its proper divisors (3051458496).

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

1390954752 is a wasteful number, since it uses less digits than its factorization.

1390954752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 1390954752 is about 37295.5057882314. The cubic root of 1390954752 is about 1116.2744921595.

The spelling of 1390954752 in words is "one billion, three hundred ninety million, nine hundred fifty-four thousand, seven hundred fifty-two".