7390081908 has 36 divisors (see below), whose sum is σ = 20378711808. Its totient is φ = 2239418640.

The previous prime is 7390081889. The next prime is 7390081961. The reversal of 7390081908 is 8091800937.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×7390081908² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9330516 + ... + 9331307.

It is an arithmetic number, because the mean of its divisors is an integer number (566075328).

Almost surely, 2^7390081908 is an apocalyptic number.

It is an amenable number.

7390081908 is an abundant number, since it is smaller than the sum of its proper divisors (12988629900).

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

7390081908 is a wasteful number, since it uses less digits than its factorization.

7390081908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18661844 (or 18661839 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 7390081908 is about 85965.5856026119. The cubic root of 7390081908 is about 1947.8241703290.

The spelling of 7390081908 in words is "seven billion, three hundred ninety million, eighty-one thousand, nine hundred eight".