618444970 has 32 divisors (see below), whose sum is σ = 1307819520. Its totient is φ = 207589440.

The previous prime is 618444859. The next prime is 618444991. The reversal of 618444970 is 79444816.

618444970 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 15 ways as a sum of consecutive naturals, for example, 214810 + ... + 217669.

It is an arithmetic number, because the mean of its divisors is an integer number (40869360).

Almost surely, 2^618444970 is an apocalyptic number.

618444970 is an abundant number, since it is smaller than the sum of its proper divisors (689374550).

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

618444970 is a wasteful number, since it uses less digits than its factorization.

618444970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432510.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 618444970 is about 24868.5538381306. The cubic root of 618444970 is about 851.9884106148.

The spelling of 618444970 in words is "six hundred eighteen million, four hundred forty-four thousand, nine hundred seventy".