1864730380 has 12 divisors (see below), whose sum is σ = 3915933840. Its totient is φ = 745892144.

The previous prime is 1864730333. The next prime is 1864730393. The reversal of 1864730380 is 830374681.

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, 46618240 + ... + 46618279.

It is an arithmetic number, because the mean of its divisors is an integer number (326327820).

Almost surely, 2^1864730380 is an apocalyptic number.

1864730380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1864730380 is an abundant number, since it is smaller than the sum of its proper divisors (2051203460).

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

1864730380 is a wasteful number, since it uses less digits than its factorization.

1864730380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93236528 (or 93236526 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1864730380 is about 43182.5240114563. The cubic root of 1864730380 is about 1230.8506201045.

The spelling of 1864730380 in words is "one billion, eight hundred sixty-four million, seven hundred thirty thousand, three hundred eighty".