189655460 has 24 divisors (see below), whose sum is σ = 403735416. Its totient is φ = 74822400.

The previous prime is 189655439. The next prime is 189655507. The reversal of 189655460 is 64556981.

It can be written as a sum of positive squares in 4 ways, for example, as 42954916 + 146700544 = 6554^2 + 12112^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63491 + ... + 66410.

It is an arithmetic number, because the mean of its divisors is an integer number (16822309).

Almost surely, 2^189655460 is an apocalyptic number.

189655460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189655460 is an abundant number, since it is smaller than the sum of its proper divisors (214079956).

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

189655460 is a wasteful number, since it uses less digits than its factorization.

189655460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129983 (or 129981 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 189655460 is about 13771.5453018171. The cubic root of 189655460 is about 574.5420020228.

The spelling of 189655460 in words is "one hundred eighty-nine million, six hundred fifty-five thousand, four hundred sixty".