188444448 has 48 divisors (see below), whose sum is σ = 549632160. Its totient is φ = 62814528.

The previous prime is 188444429. The next prime is 188444483. The reversal of 188444448 is 844444881.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×188444448² = 71022619964049408, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 108190 + ... + 109917.

It is an arithmetic number, because the mean of its divisors is an integer number (11450670).

Almost surely, 2^188444448 is an apocalyptic number.

188444448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

188444448 is an abundant number, since it is smaller than the sum of its proper divisors (361187712).

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

188444448 is a wasteful number, since it uses less digits than its factorization.

188444448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218126 (or 218112 counting only the distinct ones).

The product of its digits is 524288, while the sum is 45.

The square root of 188444448 is about 13727.5069841541. The cubic root of 188444448 is about 573.3165105334.

The spelling of 188444448 in words is "one hundred eighty-eight million, four hundred forty-four thousand, four hundred forty-eight".