124428090 has 32 divisors (see below), whose sum is σ = 299076480. Its totient is φ = 33130944.

The previous prime is 124428089. The next prime is 124428121. The reversal of 124428090 is 90824421.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 19971 + ... + 25449.

It is an arithmetic number, because the mean of its divisors is an integer number (9346140).

Almost surely, 2^124428090 is an apocalyptic number.

124428090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124428090 is an abundant number, since it is smaller than the sum of its proper divisors (174648390).

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

124428090 is a wasteful number, since it uses less digits than its factorization.

124428090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 124428090 is about 11154.7339726235. The cubic root of 124428090 is about 499.2362874134.

The spelling of 124428090 in words is "one hundred twenty-four million, four hundred twenty-eight thousand, ninety".