401007056 has 10 divisors (see below), whose sum is σ = 776951202. Its totient is φ = 200503520.

The previous prime is 401007049. The next prime is 401007059. The reversal of 401007056 is 650700104.

It can be written as a sum of positive squares in only one way, i.e., 302203456 + 98803600 = 17384^2 + 9940^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401007059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12531455 + ... + 12531486.

Almost surely, 2^401007056 is an apocalyptic number.

It is an amenable number.

401007056 is a deficient number, since it is larger than the sum of its proper divisors (375944146).

401007056 is a wasteful number, since it uses less digits than its factorization.

401007056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25062949 (or 25062943 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 401007056 is about 20025.1605736384. The cubic root of 401007056 is about 737.4241192063.

The spelling of 401007056 in words is "four hundred one million, seven thousand, fifty-six".