189240512 has 28 divisors (see below), whose sum is σ = 376473720. Its totient is φ = 94381056.

The previous prime is 189240511. The next prime is 189240517. The reversal of 189240512 is 215042981.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (189240511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23288 + ... + 30344.

It is an arithmetic number, because the mean of its divisors is an integer number (13445490).

Almost surely, 2^189240512 is an apocalyptic number.

It is an amenable number.

189240512 is a deficient number, since it is larger than the sum of its proper divisors (187233208).

189240512 is an equidigital number, since it uses as much as digits as its factorization.

189240512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7488 (or 7478 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 189240512 is about 13756.4716406497. The cubic root of 189240512 is about 574.1226817539.

The spelling of 189240512 in words is "one hundred eighty-nine million, two hundred forty thousand, five hundred twelve".