620952040 has 32 divisors (see below), whose sum is σ = 1410984360. Its totient is φ = 245920000.

The previous prime is 620952037. The next prime is 620952043. The reversal of 620952040 is 40259026.

It is an interprime number because it is at equal distance from previous prime (620952037) and next prime (620952043).

It can be written as a sum of positive squares in 4 ways, for example, as 620308836 + 643204 = 24906^2 + 802^2 .

It is not an unprimeable number, because it can be changed into a prime (620952043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72811 + ... + 80890.

Almost surely, 2^620952040 is an apocalyptic number.

It is an amenable number.

620952040 is an abundant number, since it is smaller than the sum of its proper divisors (790032320).

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

620952040 is a wasteful number, since it uses less digits than its factorization.

620952040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153813 (or 153809 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 620952040 is about 24918.9092859218. The cubic root of 620952040 is about 853.1381301275.

The spelling of 620952040 in words is "six hundred twenty million, nine hundred fifty-two thousand, forty".