189340556 has 6 divisors (see below), whose sum is σ = 331345980. Its totient is φ = 94670276.

The previous prime is 189340553. The next prime is 189340579. The reversal of 189340556 is 655043981.

It is a super-2 number, since 2×189340556² = 71699692292778272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (189340553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23667566 + ... + 23667573.

It is an arithmetic number, because the mean of its divisors is an integer number (55224330).

Almost surely, 2^189340556 is an apocalyptic number.

It is an amenable number.

189340556 is a deficient number, since it is larger than the sum of its proper divisors (142005424).

189340556 is a wasteful number, since it uses less digits than its factorization.

189340556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47335143 (or 47335141 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 189340556 is about 13760.1074123715. The cubic root of 189340556 is about 574.2238359417.

The spelling of 189340556 in words is "one hundred eighty-nine million, three hundred forty thousand, five hundred fifty-six".