620168828 has 12 divisors (see below), whose sum is σ = 1122719640. Its totient is φ = 299391792.

The previous prime is 620168771. The next prime is 620168831. The reversal of 620168828 is 828861026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2673026 + ... + 2673257.

It is an arithmetic number, because the mean of its divisors is an integer number (93559970).

Almost surely, 2^620168828 is an apocalyptic number.

It is an amenable number.

620168828 is a deficient number, since it is larger than the sum of its proper divisors (502550812).

620168828 is a wasteful number, since it uses less digits than its factorization.

620168828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346316 (or 5346314 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 620168828 is about 24903.1891130433. The cubic root of 620168828 is about 852.7792891299.

The spelling of 620168828 in words is "six hundred twenty million, one hundred sixty-eight thousand, eight hundred twenty-eight".