189684930 has 16 divisors (see below), whose sum is σ = 455243904. Its totient is φ = 50582640.

The previous prime is 189684917. The next prime is 189684931. The reversal of 189684930 is 39486981.

189684930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×189684930³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189684930.

It is not an unprimeable number, because it can be changed into a prime (189684931) 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, 3161386 + ... + 3161445.

It is an arithmetic number, because the mean of its divisors is an integer number (28452744).

Almost surely, 2^189684930 is an apocalyptic number.

189684930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189684930 is an abundant number, since it is smaller than the sum of its proper divisors (265558974).

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

189684930 is a wasteful number, since it uses less digits than its factorization.

189684930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6322841.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 189684930 is about 13772.6152200662. The cubic root of 189684930 is about 574.5717592747.

The spelling of 189684930 in words is "one hundred eighty-nine million, six hundred eighty-four thousand, nine hundred thirty".