401157156 has 24 divisors (see below), whose sum is σ = 936702144. Its totient is φ = 133623520.

The previous prime is 401157151. The next prime is 401157199. The reversal of 401157156 is 651751104.

It is not an unprimeable number, because it can be changed into a prime (401157151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6721 + ... + 29111.

It is an arithmetic number, because the mean of its divisors is an integer number (39029256).

Almost surely, 2^401157156 is an apocalyptic number.

It is an amenable number.

401157156 is an abundant number, since it is smaller than the sum of its proper divisors (535544988).

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

401157156 is a wasteful number, since it uses less digits than its factorization.

401157156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23891 (or 23889 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 401157156 is about 20028.9080081766. The cubic root of 401157156 is about 737.5161155532.

The spelling of 401157156 in words is "four hundred one million, one hundred fifty-seven thousand, one hundred fifty-six".