1396115940 has 48 divisors (see below), whose sum is σ = 3911902848. Its totient is φ = 372033024.

The previous prime is 1396115923. The next prime is 1396115977. The reversal of 1396115940 is 495116931.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85689 + ... + 100671.

It is an arithmetic number, because the mean of its divisors is an integer number (81497976).

Almost surely, 2^1396115940 is an apocalyptic number.

1396115940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1396115940 is an abundant number, since it is smaller than the sum of its proper divisors (2515786908).

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

1396115940 is a wasteful number, since it uses less digits than its factorization.

1396115940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16548 (or 16546 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 1396115940 is about 37364.6348838042. The cubic root of 1396115940 is about 1117.6534469908.

Subtracting from 1396115940 its reverse (495116931), we obtain a palindrome (900999009).

The spelling of 1396115940 in words is "one billion, three hundred ninety-six million, one hundred fifteen thousand, nine hundred forty".