1864064408 has 32 divisors (see below), whose sum is σ = 3599424000. Its totient is φ = 904619040.

The previous prime is 1864064393. The next prime is 1864064429. The reversal of 1864064408 is 8044604681.

It is a super-2 number, since 2×1864064408² = 6949472234344780928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12293 + ... + 62283.

It is an arithmetic number, because the mean of its divisors is an integer number (112482000).

Almost surely, 2^1864064408 is an apocalyptic number.

It is an amenable number.

1864064408 is a deficient number, since it is larger than the sum of its proper divisors (1735359592).

1864064408 is a wasteful number, since it uses less digits than its factorization.

1864064408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50135 (or 50131 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 1864064408 is about 43174.8121941486. The cubic root of 1864064408 is about 1230.7040735114.

The spelling of 1864064408 in words is "one billion, eight hundred sixty-four million, sixty-four thousand, four hundred eight".