610621404 has 24 divisors (see below), whose sum is σ = 1425193728. Its totient is φ = 203481840.

The previous prime is 610621399. The next prime is 610621423. The reversal of 610621404 is 404126016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63259 + ... + 72269.

It is an arithmetic number, because the mean of its divisors is an integer number (59383072).

Almost surely, 2^610621404 is an apocalyptic number.

It is an amenable number.

610621404 is an abundant number, since it is smaller than the sum of its proper divisors (814572324).

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

610621404 is a wasteful number, since it uses less digits than its factorization.

610621404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14665 (or 14663 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 610621404 is about 24710.7548245698. The cubic root of 610621404 is about 848.3804937052.

The spelling of 610621404 in words is "six hundred ten million, six hundred twenty-one thousand, four hundred four".