189690416 has 40 divisors (see below), whose sum is σ = 382859424. Its totient is φ = 90961920.

The previous prime is 189690373. The next prime is 189690439. The reversal of 189690416 is 614096981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39776 + ... + 44288.

Almost surely, 2^189690416 is an apocalyptic number.

189690416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189690416 is an abundant number, since it is smaller than the sum of its proper divisors (193169008).

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

189690416 is a wasteful number, since it uses less digits than its factorization.

189690416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629 (or 4623 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 189690416 is about 13772.8143819628. The cubic root of 189690416 is about 574.5772984079.

The spelling of 189690416 in words is "one hundred eighty-nine million, six hundred ninety thousand, four hundred sixteen".