620152644 has 24 divisors (see below), whose sum is σ = 1493701888. Its totient is φ = 200049120.

The previous prime is 620152601. The next prime is 620152661. The reversal of 620152644 is 446251026.

620152644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833167 + ... + 833910.

Almost surely, 2^620152644 is an apocalyptic number.

It is an amenable number.

620152644 is an abundant number, since it is smaller than the sum of its proper divisors (873549244).

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

620152644 is a wasteful number, since it uses less digits than its factorization.

620152644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667115 (or 1667113 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 620152644 is about 24902.8641726208. The cubic root of 620152644 is about 852.7718709885.

The spelling of 620152644 in words is "six hundred twenty million, one hundred fifty-two thousand, six hundred forty-four".