620495928 has 96 divisors (see below), whose sum is σ = 1815144240. Its totient is φ = 190356480.

The previous prime is 620495923. The next prime is 620495983. The reversal of 620495928 is 829594026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620495921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404523 + ... + 406053.

Almost surely, 2^620495928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620495928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907572120).

620495928 is an abundant number, since it is smaller than the sum of its proper divisors (1194648312).

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

620495928 is a wasteful number, since it uses less digits than its factorization.

620495928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 620495928 is about 24909.7556792515. The cubic root of 620495928 is about 852.9291919012.

The spelling of 620495928 in words is "six hundred twenty million, four hundred ninety-five thousand, nine hundred twenty-eight".