620496400 has 30 divisors (see below), whose sum is σ = 1490743562. Its totient is φ = 248198400.

The previous prime is 620496353. The next prime is 620496421. The reversal of 620496400 is 4694026.

It can be written as a sum of positive squares in 3 ways, for example, as 685584 + 619810816 = 828^2 + 24896^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 775221 + ... + 776020.

Almost surely, 2^620496400 is an apocalyptic number.

It is an amenable number.

620496400 is an abundant number, since it is smaller than the sum of its proper divisors (870247162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620496400 is a wasteful number, since it uses less digits than its factorization.

620496400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551259 (or 1551248 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 620496400 is about 24909.7651534494. The cubic root of 620496400 is about 852.9294081704.

The spelling of 620496400 in words is "six hundred twenty million, four hundred ninety-six thousand, four hundred".