1864668408 has 32 divisors (see below), whose sum is σ = 4677598800. Its totient is φ = 619432448.

The previous prime is 1864668371. The next prime is 1864668413. The reversal of 1864668408 is 8048664681.

1864668408 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 125553 + ... + 139616.

Almost surely, 2^1864668408 is an apocalyptic number.

It is an amenable number.

1864668408 is an abundant number, since it is smaller than the sum of its proper divisors (2812930392).

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

1864668408 is a wasteful number, since it uses less digits than its factorization.

1864668408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265471 (or 265467 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 51.

The square root of 1864668408 is about 43181.8064466970. The cubic root of 1864668408 is about 1230.8369846891.

The spelling of 1864668408 in words is "one billion, eight hundred sixty-four million, six hundred sixty-eight thousand, four hundred eight".