401571632 has 40 divisors (see below), whose sum is σ = 970033152. Its totient is φ = 156456000.

The previous prime is 401571629. The next prime is 401571661. The reversal of 401571632 is 236175104.

It is a super-2 number, since 2×401571632² = 322519551254286848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401571595 and 401571604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161744 + ... + 164207.

Almost surely, 2^401571632 is an apocalyptic number.

It is an amenable number.

401571632 is an abundant number, since it is smaller than the sum of its proper divisors (568461520).

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

401571632 is a wasteful number, since it uses less digits than its factorization.

401571632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325977 (or 325971 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 401571632 is about 20039.2522814600. The cubic root of 401571632 is about 737.7700289370.

The spelling of 401571632 in words is "four hundred one million, five hundred seventy-one thousand, six hundred thirty-two".