620571490 has 96 divisors (see below), whose sum is σ = 1438238592. Its totient is φ = 188601600.

The previous prime is 620571439. The next prime is 620571509. The reversal of 620571490 is 94175026.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346377 + ... + 348163.

It is an arithmetic number, because the mean of its divisors is an integer number (14981652).

Almost surely, 2^620571490 is an apocalyptic number.

620571490 is an abundant number, since it is smaller than the sum of its proper divisors (817667102).

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

620571490 is a wasteful number, since it uses less digits than its factorization.

620571490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864 (or 1853 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 620571490 is about 24911.2723480757. The cubic root of 620571490 is about 852.9638128212.

The spelling of 620571490 in words is "six hundred twenty million, five hundred seventy-one thousand, four hundred ninety".