620624460 has 24 divisors (see below), whose sum is σ = 1737748656. Its totient is φ = 165499840.

The previous prime is 620624443. The next prime is 620624471. The reversal of 620624460 is 64426026.

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 7 ways as a sum of consecutive naturals, for example, 5171811 + ... + 5171930.

It is an arithmetic number, because the mean of its divisors is an integer number (72406194).

Almost surely, 2^620624460 is an apocalyptic number.

620624460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620624460 is an abundant number, since it is smaller than the sum of its proper divisors (1117124196).

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

620624460 is a wasteful number, since it uses less digits than its factorization.

620624460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10343753 (or 10343751 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 620624460 is about 24912.3354987043. The cubic root of 620624460 is about 852.9880808861.

The spelling of 620624460 in words is "six hundred twenty million, six hundred twenty-four thousand, four hundred sixty".