621232402 has 8 divisors (see below), whose sum is σ = 1064969856. Its totient is φ = 266242452.

The previous prime is 621232399. The next prime is 621232427. The reversal of 621232402 is 204232126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22186858 + ... + 22186885.

It is an arithmetic number, because the mean of its divisors is an integer number (133121232).

Almost surely, 2^621232402 is an apocalyptic number.

621232402 is a deficient number, since it is larger than the sum of its proper divisors (443737454).

621232402 is a wasteful number, since it uses less digits than its factorization.

621232402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44373752.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 621232402 is about 24924.5341380737. The cubic root of 621232402 is about 853.2665090833.

Adding to 621232402 its reverse (204232126), we get a palindrome (825464528).

The spelling of 621232402 in words is "six hundred twenty-one million, two hundred thirty-two thousand, four hundred two".