1224872490 has 16 divisors (see below), whose sum is σ = 2939694048. Its totient is φ = 326632656.

The previous prime is 1224872489. The next prime is 1224872543. The reversal of 1224872490 is 942784221.

It is a happy number.

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, 20414512 + ... + 20414571.

It is an arithmetic number, because the mean of its divisors is an integer number (183730878).

Almost surely, 2^1224872490 is an apocalyptic number.

1224872490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1224872490 is an abundant number, since it is smaller than the sum of its proper divisors (1714821558).

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

1224872490 is a wasteful number, since it uses less digits than its factorization.

1224872490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40829093.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1224872490 is about 34998.1783811672. The cubic root of 1224872490 is about 1069.9503543507.

The spelling of 1224872490 in words is "one billion, two hundred twenty-four million, eight hundred seventy-two thousand, four hundred ninety".