189038472 has 192 divisors, whose sum is σ = 595900800. Its totient is φ = 49674240.

The previous prime is 189038461. The next prime is 189038477. The reversal of 189038472 is 274830981.

189038472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (189038477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 784272 + ... + 784512.

It is an arithmetic number, because the mean of its divisors is an integer number (3103650).

Almost surely, 2^189038472 is an apocalyptic number.

189038472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189038472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297950400).

189038472 is an abundant number, since it is smaller than the sum of its proper divisors (406862328).

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

189038472 is a wasteful number, since it uses less digits than its factorization.

189038472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 189038472 is about 13749.1262267826. The cubic root of 189038472 is about 573.9182909669.

The spelling of 189038472 in words is "one hundred eighty-nine million, thirty-eight thousand, four hundred seventy-two".