628790460 has 48 divisors (see below), whose sum is σ = 1767155712. Its totient is φ = 167054400.

The previous prime is 628790447. The next prime is 628790483. The reversal of 628790460 is 64097826.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3076 + ... + 35595.

It is an arithmetic number, because the mean of its divisors is an integer number (36815744).

Almost surely, 2^628790460 is an apocalyptic number.

628790460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

628790460 is an abundant number, since it is smaller than the sum of its proper divisors (1138365252).

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

628790460 is a wasteful number, since it uses less digits than its factorization.

628790460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38954 (or 38952 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 628790460 is about 25075.6946065308. The cubic root of 628790460 is about 856.7129163629.

The spelling of 628790460 in words is "six hundred twenty-eight million, seven hundred ninety thousand, four hundred sixty".