620251104 has 96 divisors (see below), whose sum is σ = 1814109696. Its totient is φ = 183941120.

The previous prime is 620251087. The next prime is 620251123. The reversal of 620251104 is 401152026.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×620251104² = 769422864026437632, which contains 22 as substring.

It is a congruent number.

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, 43384 + ... + 55880.

It is an arithmetic number, because the mean of its divisors is an integer number (18896976).

Almost surely, 2^620251104 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 620251104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907054848).

620251104 is an abundant number, since it is smaller than the sum of its proper divisors (1193858592).

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

620251104 is a wasteful number, since it uses less digits than its factorization.

620251104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12568 (or 12560 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 620251104 is about 24904.8409752000. The cubic root of 620251104 is about 852.8169993807.

The spelling of 620251104 in words is "six hundred twenty million, two hundred fifty-one thousand, one hundred four".