1394940 has 48 divisors (see below), whose sum is σ = 3975552. Its totient is φ = 365376.

The previous prime is 1394933. The next prime is 1394941. The reversal of 1394940 is 494931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1394898 and 1394907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3847 + ... + 4193.

It is an arithmetic number, because the mean of its divisors is an integer number (82824).

2^1394940 is an apocalyptic number.

1394940 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 1394940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1987776).

1394940 is an abundant number, since it is smaller than the sum of its proper divisors (2580612).

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

1394940 is a wasteful number, since it uses less digits than its factorization.

1394940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1394940 is about 1181.0757808032. The cubic root of 1394940 is about 111.7339561270.

Subtracting from 1394940 its reverse (494931), we obtain a palindrome (900009).

The spelling of 1394940 in words is "one million, three hundred ninety-four thousand, nine hundred forty".