628124520 has 64 divisors (see below), whose sum is σ = 1886670720. Its totient is φ = 167295744.

The previous prime is 628124513. The next prime is 628124557. The reversal of 628124520 is 25421826.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 113334 + ... + 118746.

It is an arithmetic number, because the mean of its divisors is an integer number (29479230).

Almost surely, 2^628124520 is an apocalyptic number.

628124520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

628124520 is an abundant number, since it is smaller than the sum of its proper divisors (1258546200).

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

628124520 is a wasteful number, since it uses less digits than its factorization.

628124520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394 (or 6390 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 628124520 is about 25062.4124936128. The cubic root of 628124520 is about 856.4103667521.

The spelling of 628124520 in words is "six hundred twenty-eight million, one hundred twenty-four thousand, five hundred twenty".