400357157 has 8 divisors (see below), whose sum is σ = 437582592. Its totient is φ = 364651200.

The previous prime is 400357129. The next prime is 400357163. The reversal of 400357157 is 751753004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400357157 - 2¹⁸ = 400095013 is a prime.

It is a super-2 number, since 2×400357157² = 320571706322245298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400357117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379319 + ... + 380372.

It is an arithmetic number, because the mean of its divisors is an integer number (54697824).

Almost surely, 2^400357157 is an apocalyptic number.

It is an amenable number.

400357157 is a deficient number, since it is larger than the sum of its proper divisors (37225435).

400357157 is a wasteful number, since it uses less digits than its factorization.

400357157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759739.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 400357157 is about 20008.9269327468. The cubic root of 400357157 is about 737.0255307641.

The spelling of 400357157 in words is "four hundred million, three hundred fifty-seven thousand, one hundred fifty-seven".