620278670 has 48 divisors (see below), whose sum is σ = 1238751360. Its totient is φ = 223439040.

The previous prime is 620278667. The next prime is 620278699. The reversal of 620278670 is 76872026.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129539 + ... + 134241.

It is an arithmetic number, because the mean of its divisors is an integer number (25807320).

Almost surely, 2^620278670 is an apocalyptic number.

620278670 is a deficient number, since it is larger than the sum of its proper divisors (618472690).

620278670 is a wasteful number, since it uses less digits than its factorization.

620278670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4841 (or 4830 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 620278670 is about 24905.3943955923. The cubic root of 620278670 is about 852.8296331914.

The spelling of 620278670 in words is "six hundred twenty million, two hundred seventy-eight thousand, six hundred seventy".