189451960 has 16 divisors (see below), whose sum is σ = 426267000. Its totient is φ = 75780768.

The previous prime is 189451949. The next prime is 189451963. The reversal of 189451960 is 69154981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189451963) 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, 2368110 + ... + 2368189.

Almost surely, 2^189451960 is an apocalyptic number.

189451960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189451960 is an abundant number, since it is smaller than the sum of its proper divisors (236815040).

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

189451960 is a wasteful number, since it uses less digits than its factorization.

189451960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736310 (or 4736306 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 189451960 is about 13764.1548959607. The cubic root of 189451960 is about 574.3364342695.

The spelling of 189451960 in words is "one hundred eighty-nine million, four hundred fifty-one thousand, nine hundred sixty".