189611480 has 16 divisors (see below), whose sum is σ = 426625920. Its totient is φ = 75844576.

The previous prime is 189611473. The next prime is 189611497. The reversal of 189611480 is 84116981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2370104 + ... + 2370183.

It is an arithmetic number, because the mean of its divisors is an integer number (26664120).

Almost surely, 2^189611480 is an apocalyptic number.

189611480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189611480 is an abundant number, since it is smaller than the sum of its proper divisors (237014440).

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

189611480 is a wasteful number, since it uses less digits than its factorization.

189611480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740298 (or 4740294 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 189611480 is about 13769.9484385382. The cubic root of 189611480 is about 574.4975876047.

It can be divided in two parts, 189611 and 480, that added together give a palindrome (190091).

The spelling of 189611480 in words is "one hundred eighty-nine million, six hundred eleven thousand, four hundred eighty".