189773070 has 32 divisors (see below), whose sum is σ = 457984800. Its totient is φ = 50325120.

The previous prime is 189773027. The next prime is 189773081. The reversal of 189773070 is 70377981.

It is a happy number.

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, 12045 + ... + 22904.

It is an arithmetic number, because the mean of its divisors is an integer number (14312025).

Almost surely, 2^189773070 is an apocalyptic number.

189773070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189773070 is an abundant number, since it is smaller than the sum of its proper divisors (268211730).

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

189773070 is a wasteful number, since it uses less digits than its factorization.

189773070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35140.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 189773070 is about 13775.8146764538. The cubic root of 189773070 is about 574.6607400087.

The spelling of 189773070 in words is "one hundred eighty-nine million, seven hundred seventy-three thousand, seventy".