7390740139 has 4 divisors (see below), whose sum is σ = 7391715280. Its totient is φ = 7389765000.

The previous prime is 7390740107. The next prime is 7390740179. The reversal of 7390740139 is 9310470937.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7390740139 - 2⁵ = 7390740107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7390740095 and 7390740104.

It is not an unprimeable number, because it can be changed into a prime (7390740179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476112 + ... + 491389.

It is an arithmetic number, because the mean of its divisors is an integer number (1847928820).

Almost surely, 2^7390740139 is an apocalyptic number.

7390740139 is a deficient number, since it is larger than the sum of its proper divisors (975141).

7390740139 is an equidigital number, since it uses as much as digits as its factorization.

7390740139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975140.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 7390740139 is about 85969.4139738081. The cubic root of 7390740139 is about 1947.8819991958.

The spelling of 7390740139 in words is "seven billion, three hundred ninety million, seven hundred forty thousand, one hundred thirty-nine".