401600626 has 16 divisors (see below), whose sum is σ = 689008896. Its totient is φ = 171976896.

The previous prime is 401600623. The next prime is 401600651. The reversal of 401600626 is 626006104.

It is a happy number.

It is a super-2 number, since 2×401600626² = 322566125607183752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401600626.

It is not an unprimeable number, because it can be changed into a prime (401600621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7770 + ... + 29386.

It is an arithmetic number, because the mean of its divisors is an integer number (43063056).

Almost surely, 2^401600626 is an apocalyptic number.

401600626 is a deficient number, since it is larger than the sum of its proper divisors (287408270).

401600626 is a wasteful number, since it uses less digits than its factorization.

401600626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22953.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 401600626 is about 20039.9756985881. The cubic root of 401600626 is about 737.7877844985.

The spelling of 401600626 in words is "four hundred one million, six hundred thousand, six hundred twenty-six".