402044626 has 4 divisors (see below), whose sum is σ = 603066942. Its totient is φ = 201022312.

The previous prime is 402044593. The next prime is 402044639. The reversal of 402044626 is 626440204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 402042601 + 2025 = 20051^2 + 45^2 .

It is a junction number, because it is equal to n+sod(n) for n = 402044594 and 402044603.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 100511155 + ... + 100511158.

Almost surely, 2^402044626 is an apocalyptic number.

402044626 is a deficient number, since it is larger than the sum of its proper divisors (201022316).

402044626 is a wasteful number, since it uses less digits than its factorization.

402044626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201022315.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 402044626 is about 20051.0504961710. The cubic root of 402044626 is about 738.0595778412.

The spelling of 402044626 in words is "four hundred two million, forty-four thousand, six hundred twenty-six".