621333452 has 24 divisors (see below), whose sum is σ = 1118227824. Its totient is φ = 301862592.

The previous prime is 621333451. The next prime is 621333473. The reversal of 621333452 is 254333126.

It is not an unprimeable number, because it can be changed into a prime (621333451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127403 + ... + 132189.

It is an arithmetic number, because the mean of its divisors is an integer number (46592826).

Almost surely, 2^621333452 is an apocalyptic number.

It is an amenable number.

621333452 is a deficient number, since it is larger than the sum of its proper divisors (496894372).

621333452 is a wasteful number, since it uses less digits than its factorization.

621333452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5705 (or 5703 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 621333452 is about 24926.5611747790. The cubic root of 621333452 is about 853.3127708397.

Adding to 621333452 its reverse (254333126), we get a palindrome (875666578).

It can be divided in two parts, 62133 and 3452, that multiplied together give a triangular number (214483116 = T₂₀₇₁₁).

The spelling of 621333452 in words is "six hundred twenty-one million, three hundred thirty-three thousand, four hundred fifty-two".