1864463272 has 16 divisors (see below), whose sum is σ = 3995278560. Its totient is φ = 799055664.

The previous prime is 1864463261. The next prime is 1864463311. The reversal of 1864463272 is 2723644681.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16646938 + ... + 16647049.

It is an arithmetic number, because the mean of its divisors is an integer number (249704910).

Almost surely, 2^1864463272 is an apocalyptic number.

It is an amenable number.

1864463272 is an abundant number, since it is smaller than the sum of its proper divisors (2130815288).

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

1864463272 is a wasteful number, since it uses less digits than its factorization.

1864463272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33294000 (or 33293996 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The square root of 1864463272 is about 43179.4311217737. The cubic root of 1864463272 is about 1230.7918473993.

The spelling of 1864463272 in words is "one billion, eight hundred sixty-four million, four hundred sixty-three thousand, two hundred seventy-two".