402628622 has 16 divisors (see below), whose sum is σ = 665373744. Its totient is φ = 181200000.

The previous prime is 402628607. The next prime is 402628643. The reversal of 402628622 is 226826204.

It is a congruent number.

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, 88379 + ... + 92822.

It is an arithmetic number, because the mean of its divisors is an integer number (41585859).

Almost surely, 2^402628622 is an apocalyptic number.

402628622 is a deficient number, since it is larger than the sum of its proper divisors (262745122).

402628622 is a wasteful number, since it uses less digits than its factorization.

402628622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181315.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 402628622 is about 20065.6079399554. The cubic root of 402628622 is about 738.4167648173.

It can be divided in two parts, 40262 and 8622, that added together give a palindrome (48884).

The spelling of 402628622 in words is "four hundred two million, six hundred twenty-eight thousand, six hundred twenty-two".