7390738945 has 16 divisors (see below), whose sum is σ = 8991072720. Its totient is φ = 5831553024.

The previous prime is 7390738939. The next prime is 7390738951. The reversal of 7390738945 is 5498370937.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7390738939) and next prime (7390738951).

It can be written as a sum of positive squares in 8 ways, for example, as 2018435329 + 5372303616 = 44927^2 + 73296^2 .

It is a cyclic number.

It is not a de Polignac number, because 7390738945 - 2⁵ = 7390738913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116101 + ... + 168109.

It is an arithmetic number, because the mean of its divisors is an integer number (561942045).

Almost surely, 2^7390738945 is an apocalyptic number.

It is an amenable number.

7390738945 is a deficient number, since it is larger than the sum of its proper divisors (1600333775).

7390738945 is a wasteful number, since it uses less digits than its factorization.

7390738945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52404.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The square root of 7390738945 is about 85969.4070294776. The cubic root of 7390738945 is about 1947.8818943001.

The spelling of 7390738945 in words is "seven billion, three hundred ninety million, seven hundred thirty-eight thousand, nine hundred forty-five".