189269770 has 16 divisors (see below), whose sum is σ = 341429760. Its totient is φ = 75542544.

The previous prime is 189269761. The next prime is 189269777. The reversal of 189269770 is 77962981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (189269777) 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, 15810 + ... + 25069.

It is an arithmetic number, because the mean of its divisors is an integer number (21339360).

Almost surely, 2^189269770 is an apocalyptic number.

189269770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189269770 is a deficient number, since it is larger than the sum of its proper divisors (152159990).

189269770 is a wasteful number, since it uses less digits than its factorization.

189269770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41349.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 189269770 is about 13757.5350263047. The cubic root of 189269770 is about 574.1522681176.

The spelling of 189269770 in words is "one hundred eighty-nine million, two hundred sixty-nine thousand, seven hundred seventy".