1888864264 has 32 divisors (see below), whose sum is σ = 4086875520. Its totient is φ = 801651456.

The previous prime is 1888864261. The next prime is 1888864267. The reversal of 1888864264 is 4624688881.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1888864261) and next prime (1888864267).

It is not an unprimeable number, because it can be changed into a prime (1888864261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157969 + ... + 169504.

It is an arithmetic number, because the mean of its divisors is an integer number (127714860).

Almost surely, 2^1888864264 is an apocalyptic number.

1888864264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1888864264 is an abundant number, since it is smaller than the sum of its proper divisors (2198011256).

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

1888864264 is a wasteful number, since it uses less digits than its factorization.

1888864264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327589 (or 327585 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 55.

The square root of 1888864264 is about 43461.0660706799. The cubic root of 1888864264 is about 1236.1378846534.

The spelling of 1888864264 in words is "one billion, eight hundred eighty-eight million, eight hundred sixty-four thousand, two hundred sixty-four".