620612880 has 80 divisors (see below), whose sum is σ = 2037083904. Its totient is φ = 155760640.

The previous prime is 620612873. The next prime is 620612891. The reversal of 620612880 is 88216026.

620612880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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, 71976 + ... + 80135.

Almost surely, 2^620612880 is an apocalyptic number.

620612880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

620612880 is an abundant number, since it is smaller than the sum of its proper divisors (1416471024).

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

620612880 is a wasteful number, since it uses less digits than its factorization.

620612880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152144 (or 152138 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 620612880 is about 24912.1030826384. The cubic root of 620612880 is about 852.9827756578.

The spelling of 620612880 in words is "six hundred twenty million, six hundred twelve thousand, eight hundred eighty".