189548540 has 12 divisors (see below), whose sum is σ = 398051976. Its totient is φ = 75819408.

The previous prime is 189548537. The next prime is 189548549. The reversal of 189548540 is 45845981.

It is a super-2 number, since 2×189548540² = 71857298032263200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189548491 and 189548500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189548549) 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, 4738694 + ... + 4738733.

It is an arithmetic number, because the mean of its divisors is an integer number (33170998).

Almost surely, 2^189548540 is an apocalyptic number.

189548540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189548540 is an abundant number, since it is smaller than the sum of its proper divisors (208503436).

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

189548540 is a wasteful number, since it uses less digits than its factorization.

189548540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9477436 (or 9477434 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 189548540 is about 13767.6628372429. The cubic root of 189548540 is about 574.4340139579.

The spelling of 189548540 in words is "one hundred eighty-nine million, five hundred forty-eight thousand, five hundred forty".