1239118490 has 16 divisors (see below), whose sum is σ = 2232554400. Its totient is φ = 495171600.

The previous prime is 1239118469. The next prime is 1239118499. The reversal of 1239118490 is 948119321.

It is not an unprimeable number, because it can be changed into a prime (1239118499) 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 7 ways as a sum of consecutive naturals, for example, 48440 + ... + 69459.

It is an arithmetic number, because the mean of its divisors is an integer number (139534650).

Almost surely, 2^1239118490 is an apocalyptic number.

1239118490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1239118490 is a deficient number, since it is larger than the sum of its proper divisors (993435910).

1239118490 is a wasteful number, since it uses less digits than its factorization.

1239118490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118957.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 1239118490 is about 35201.1148971165. The cubic root of 1239118490 is about 1074.0824302967.

The spelling of 1239118490 in words is "one billion, two hundred thirty-nine million, one hundred eighteen thousand, four hundred ninety".