7290664740 has 96 divisors (see below), whose sum is σ = 22749941760. Its totient is φ = 1938359808.

The previous prime is 7290664739. The next prime is 7290664807. The reversal of 7290664740 is 474660927.

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

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 31 ways as a sum of consecutive naturals, for example, 161949 + ... + 202011.

It is an arithmetic number, because the mean of its divisors is an integer number (236978560).

Almost surely, 2^7290664740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7290664740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11374970880).

7290664740 is an abundant number, since it is smaller than the sum of its proper divisors (15459277020).

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

7290664740 is a wasteful number, since it uses less digits than its factorization.

7290664740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40418 (or 40410 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 7290664740 is about 85385.3894996094. The cubic root of 7290664740 is about 1939.0501549953.

The spelling of 7290664740 in words is "seven billion, two hundred ninety million, six hundred sixty-four thousand, seven hundred forty".