189622464 has 112 divisors (see below), whose sum is σ = 517867392. Its totient is φ = 61212672.

The previous prime is 189622463. The next prime is 189622483. The reversal of 189622464 is 464226981.

It is a super-3 number, since 3×189622464³ (a number of 26 digits) contains 333 as substring.

Its product of digits (165888) is a multiple of the sum of its prime divisors (324).

It is not an unprimeable number, because it can be changed into a prime (189622463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1163247 + ... + 1163409.

It is an arithmetic number, because the mean of its divisors is an integer number (4623816).

Almost surely, 2^189622464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189622464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258933696).

189622464 is an abundant number, since it is smaller than the sum of its proper divisors (328244928).

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

189622464 is a wasteful number, since it uses less digits than its factorization.

189622464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 324 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 189622464 is about 13770.3472723094. The cubic root of 189622464 is about 574.5086807439.

The spelling of 189622464 in words is "one hundred eighty-nine million, six hundred twenty-two thousand, four hundred sixty-four".