401457641 has 12 divisors (see below), whose sum is σ = 438954048. Its totient is φ = 366962544.

The previous prime is 401457613. The next prime is 401457647. The reversal of 401457641 is 146754104.

It is a de Polignac number, because none of the positive numbers 2^k-401457641 is a prime.

It is a super-2 number, since 2×401457641² = 322336475034569762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401457598 and 401457607.

It is not an unprimeable number, because it can be changed into a prime (401457647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5876 + ... + 28938.

It is an arithmetic number, because the mean of its divisors is an integer number (36579504).

Almost surely, 2^401457641 is an apocalyptic number.

It is an amenable number.

401457641 is a deficient number, since it is larger than the sum of its proper divisors (37496407).

401457641 is a wasteful number, since it uses less digits than its factorization.

401457641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23192 (or 23179 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 401457641 is about 20036.4078866448. The cubic root of 401457641 is about 737.7002139937.

The spelling of 401457641 in words is "four hundred one million, four hundred fifty-seven thousand, six hundred forty-one".