189773052 has 48 divisors (see below), whose sum is σ = 510074880. Its totient is φ = 53790912.

The previous prime is 189773027. The next prime is 189773081. The reversal of 189773052 is 250377981.

It is a super-2 number, since 2×189773052² = 72027622530789408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 189772995 and 189773013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1774 + ... + 19562.

It is an arithmetic number, because the mean of its divisors is an integer number (10626560).

Almost surely, 2^189773052 is an apocalyptic number.

189773052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189773052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255037440).

189773052 is an abundant number, since it is smaller than the sum of its proper divisors (320301828).

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

189773052 is a wasteful number, since it uses less digits than its factorization.

189773052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17930 (or 17928 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 189773052 is about 13775.8140231349. The cubic root of 189773052 is about 574.6607218398.

The spelling of 189773052 in words is "one hundred eighty-nine million, seven hundred seventy-three thousand, fifty-two".