189427480 has 32 divisors (see below), whose sum is σ = 464959440. Its totient is φ = 68882560.

The previous prime is 189427477. The next prime is 189427499. The reversal of 189427480 is 84724981.

189427480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 214819 + ... + 215698.

Almost surely, 2^189427480 is an apocalyptic number.

189427480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189427480 is an abundant number, since it is smaller than the sum of its proper divisors (275531960).

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

189427480 is a wasteful number, since it uses less digits than its factorization.

189427480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430539 (or 430535 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 189427480 is about 13763.2656008667. The cubic root of 189427480 is about 574.3116956119.

The spelling of 189427480 in words is "one hundred eighty-nine million, four hundred twenty-seven thousand, four hundred eighty".