620009156 has 48 divisors (see below), whose sum is σ = 1192322880. Its totient is φ = 280368000.

The previous prime is 620009141. The next prime is 620009161. The reversal of 620009156 is 651900026.

It is a super-2 number, since 2×620009156² = 768822707047664672, which contains 22 as substring.

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, 874130 + ... + 874838.

It is an arithmetic number, because the mean of its divisors is an integer number (24840060).

Almost surely, 2^620009156 is an apocalyptic number.

It is an amenable number.

620009156 is a deficient number, since it is larger than the sum of its proper divisors (572313724).

620009156 is a wasteful number, since it uses less digits than its factorization.

620009156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 620009156 is about 24899.9830522031. The cubic root of 620009156 is about 852.7060958014.

The spelling of 620009156 in words is "six hundred twenty million, nine thousand, one hundred fifty-six".