1839975564 has 24 divisors (see below), whose sum is σ = 4906601728. Its totient is φ = 525707280.

The previous prime is 1839975563. The next prime is 1839975589. The reversal of 1839975564 is 4655799381.

It is a super-2 number, since 2×1839975564² = 6771020152234236192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1839975563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10952152 + ... + 10952319.

Almost surely, 2^1839975564 is an apocalyptic number.

1839975564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1839975564 is an abundant number, since it is smaller than the sum of its proper divisors (3066626164).

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

1839975564 is a wasteful number, since it uses less digits than its factorization.

1839975564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21904485 (or 21904483 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 57.

The square root of 1839975564 is about 42894.9363445151. The cubic root of 1839975564 is about 1225.3797104725.

The spelling of 1839975564 in words is "one billion, eight hundred thirty-nine million, nine hundred seventy-five thousand, five hundred sixty-four".