189274968 has 40 divisors (see below), whose sum is σ = 530146980. Its totient is φ = 63091440.

The previous prime is 189274919. The next prime is 189274993. The reversal of 189274968 is 869472981.

It is a super-2 number, since 2×189274968² = 71650027022802048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 145398 + ... + 146693.

Almost surely, 2^189274968 is an apocalyptic number.

189274968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

189274968 is an abundant number, since it is smaller than the sum of its proper divisors (340872012).

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

189274968 is a wasteful number, since it uses less digits than its factorization.

189274968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292109 (or 292096 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 189274968 is about 13757.7239396639. The cubic root of 189274968 is about 574.1575241359.

The spelling of 189274968 in words is "one hundred eighty-nine million, two hundred seventy-four thousand, nine hundred sixty-eight".