401625004 has 24 divisors (see below), whose sum is σ = 768354048. Its totient is φ = 182172240.

The previous prime is 401624999. The next prime is 401625013. The reversal of 401625004 is 400526104.

It is a super-2 number, since 2×401625004² = 322605287676000032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12057 + ... + 30799.

It is an arithmetic number, because the mean of its divisors is an integer number (32014752).

Almost surely, 2^401625004 is an apocalyptic number.

401625004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

401625004 is a deficient number, since it is larger than the sum of its proper divisors (366729044).

401625004 is a wasteful number, since it uses less digits than its factorization.

401625004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19245 (or 19243 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 401625004 is about 20040.5839236286. The cubic root of 401625004 is about 737.8027126182.

The spelling of 401625004 in words is "four hundred one million, six hundred twenty-five thousand, four".