189254630 has 32 divisors (see below), whose sum is σ = 368292960. Its totient is φ = 69776640.

The previous prime is 189254627. The next prime is 189254641. The reversal of 189254630 is 36452981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6431 + ... + 20490.

It is an arithmetic number, because the mean of its divisors is an integer number (11509155).

Almost surely, 2^189254630 is an apocalyptic number.

189254630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189254630 is a deficient number, since it is larger than the sum of its proper divisors (179038330).

189254630 is a wasteful number, since it uses less digits than its factorization.

189254630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26984.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 189254630 is about 13756.9847713807. The cubic root of 189254630 is about 574.1369585815.

The spelling of 189254630 in words is "one hundred eighty-nine million, two hundred fifty-four thousand, six hundred thirty".