124904890 has 32 divisors (see below), whose sum is σ = 253186560. Its totient is φ = 43953600.

The previous prime is 124904887. The next prime is 124904891. The reversal of 124904890 is 98409421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (124904891) by changing a digit.

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, 14905 + ... + 21724.

It is an arithmetic number, because the mean of its divisors is an integer number (7912080).

Almost surely, 2^124904890 is an apocalyptic number.

124904890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124904890 is an abundant number, since it is smaller than the sum of its proper divisors (128281670).

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

124904890 is a wasteful number, since it uses less digits than its factorization.

124904890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36678.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 124904890 is about 11176.0856295932. The cubic root of 124904890 is about 499.8731544898.

The spelling of 124904890 in words is "one hundred twenty-four million, nine hundred four thousand, eight hundred ninety".