189738330 has 16 divisors (see below), whose sum is σ = 455372064. Its totient is φ = 50596880.

The previous prime is 189738323. The next prime is 189738337. The reversal of 189738330 is 33837981.

It is an interprime number because it is at equal distance from previous prime (189738323) and next prime (189738337).

It is not an unprimeable number, because it can be changed into a prime (189738337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3162276 + ... + 3162335.

It is an arithmetic number, because the mean of its divisors is an integer number (28460754).

Almost surely, 2^189738330 is an apocalyptic number.

189738330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189738330 is an abundant number, since it is smaller than the sum of its proper divisors (265633734).

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

189738330 is a wasteful number, since it uses less digits than its factorization.

189738330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6324621.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 189738330 is about 13774.5537132787. The cubic root of 189738330 is about 574.6256719273.

The spelling of 189738330 in words is "one hundred eighty-nine million, seven hundred thirty-eight thousand, three hundred thirty".