189858952 has 16 divisors (see below), whose sum is σ = 357066000. Its totient is φ = 94641360.

The previous prime is 189858943. The next prime is 189858953. The reversal of 189858952 is 259858981.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 189858893 and 189858902.

It is not an unprimeable number, because it can be changed into a prime (189858953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33202 + ... + 38497.

It is an arithmetic number, because the mean of its divisors is an integer number (22316625).

Almost surely, 2^189858952 is an apocalyptic number.

It is an amenable number.

189858952 is a deficient number, since it is larger than the sum of its proper divisors (167207048).

189858952 is a wasteful number, since it uses less digits than its factorization.

189858952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72036 (or 72032 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 55.

The square root of 189858952 is about 13778.9314534909. The cubic root of 189858952 is about 574.7474147068.

The spelling of 189858952 in words is "one hundred eighty-nine million, eight hundred fifty-eight thousand, nine hundred fifty-two".