618620472 has 48 divisors (see below), whose sum is σ = 1691717040. Its totient is φ = 204202368.

The previous prime is 618620461. The next prime is 618620477. The reversal of 618620472 is 274026816.

618620472 is a `hidden beast` number, since 6 + 186 + 2 + 0 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618620477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34293 + ... + 49124.

It is an arithmetic number, because the mean of its divisors is an integer number (35244105).

Almost surely, 2^618620472 is an apocalyptic number.

It is an amenable number.

618620472 is an abundant number, since it is smaller than the sum of its proper divisors (1073096568).

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

618620472 is a wasteful number, since it uses less digits than its factorization.

618620472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83532 (or 83525 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 618620472 is about 24872.0821806298. The cubic root of 618620472 is about 852.0689952722.

The spelling of 618620472 in words is "six hundred eighteen million, six hundred twenty thousand, four hundred seventy-two".