157840396 has 24 divisors (see below), whose sum is σ = 316382976. Its totient is φ = 67495440.

The previous prime is 157840379. The next prime is 157840433. The reversal of 157840396 is 693048751.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7041 + ... + 19111.

It is an arithmetic number, because the mean of its divisors is an integer number (13182624).

Almost surely, 2^157840396 is an apocalyptic number.

It is an amenable number.

157840396 is an abundant number, since it is smaller than the sum of its proper divisors (158542580).

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

157840396 is a wasteful number, since it uses less digits than its factorization.

157840396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12549 (or 12547 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 157840396 is about 12563.4547796376. The cubic root of 157840396 is about 540.4299228281.

The spelling of 157840396 in words is "one hundred fifty-seven million, eight hundred forty thousand, three hundred ninety-six".