620716740 has 48 divisors (see below), whose sum is σ = 1986294912. Its totient is φ = 141878016.

The previous prime is 620716729. The next prime is 620716769. The reversal of 620716740 is 47617026.

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, 738529 + ... + 739368.

It is an arithmetic number, because the mean of its divisors is an integer number (41381144).

Almost surely, 2^620716740 is an apocalyptic number.

620716740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620716740 is an abundant number, since it is smaller than the sum of its proper divisors (1365578172).

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

620716740 is a wasteful number, since it uses less digits than its factorization.

620716740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477916 (or 1477914 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 620716740 is about 24914.1875243806. The cubic root of 620716740 is about 853.0303554253.

The spelling of 620716740 in words is "six hundred twenty million, seven hundred sixteen thousand, seven hundred forty".