124189928 has 16 divisors (see below), whose sum is σ = 245112000. Its totient is φ = 58826736.

The previous prime is 124189907. The next prime is 124189963. The reversal of 124189928 is 829981421.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408368 + ... + 408671.

It is an arithmetic number, because the mean of its divisors is an integer number (15319500).

Almost surely, 2^124189928 is an apocalyptic number.

It is an amenable number.

124189928 is a deficient number, since it is larger than the sum of its proper divisors (120922072).

124189928 is a wasteful number, since it uses less digits than its factorization.

124189928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817064 (or 817060 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 124189928 is about 11144.0534815659. The cubic root of 124189928 is about 498.9175623485.

The spelling of 124189928 in words is "one hundred twenty-four million, one hundred eighty-nine thousand, nine hundred twenty-eight".