7242318990 has 24 divisors (see below), whose sum is σ = 18830029608. Its totient is φ = 1931285040.

The previous prime is 7242318961. The next prime is 7242318991. The reversal of 7242318990 is 998132427.

7242318990 is a `hidden beast` number, since 7 + 242 + 318 + 9 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7242318991) 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 11 ways as a sum of consecutive naturals, for example, 40235016 + ... + 40235195.

It is an arithmetic number, because the mean of its divisors is an integer number (784584567).

Almost surely, 2^7242318990 is an apocalyptic number.

7242318990 is an abundant number, since it is smaller than the sum of its proper divisors (11587710618).

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

7242318990 is a wasteful number, since it uses less digits than its factorization.

7242318990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80470224 (or 80470221 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 7242318990 is about 85101.8154330447. The cubic root of 7242318990 is about 1934.7545789735.

The spelling of 7242318990 in words is "seven billion, two hundred forty-two million, three hundred eighteen thousand, nine hundred ninety".