7390138932 has 72 divisors (see below), whose sum is σ = 20407252320. Its totient is φ = 2236317120.

The previous prime is 7390138919. The next prime is 7390138961. The reversal of 7390138932 is 2398310937.

It is a super-2 number, since 2×7390138932² (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 23 ways as a sum of consecutive naturals, for example, 280018 + ... + 305270.

It is an arithmetic number, because the mean of its divisors is an integer number (283434060).

Almost surely, 2^7390138932 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 7390138932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10203626160).

7390138932 is an abundant number, since it is smaller than the sum of its proper divisors (13017113388).

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

7390138932 is a wasteful number, since it uses less digits than its factorization.

7390138932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26013 (or 26008 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 7390138932 is about 85965.9172695784. The cubic root of 7390138932 is about 1947.8291803068.

The spelling of 7390138932 in words is "seven billion, three hundred ninety million, one hundred thirty-eight thousand, nine hundred thirty-two".