401056004 has 6 divisors (see below), whose sum is σ = 701848014. Its totient is φ = 200528000.

The previous prime is 401056003. The next prime is 401056031. The reversal of 401056004 is 400650104.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 384081604 + 16974400 = 19598^2 + 4120^2 .

It is not an unprimeable number, because it can be changed into a prime (401056001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50131997 + ... + 50132004.

It is an arithmetic number, because the mean of its divisors is an integer number (116974669).

Almost surely, 2^401056004 is an apocalyptic number.

It is an amenable number.

401056004 is a deficient number, since it is larger than the sum of its proper divisors (300792010).

401056004 is a wasteful number, since it uses less digits than its factorization.

401056004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100264005 (or 100264003 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 401056004 is about 20026.3826988301. The cubic root of 401056004 is about 737.4541219761.

The spelling of 401056004 in words is "four hundred one million, fifty-six thousand, four".