7394939728 has 40 divisors (see below), whose sum is σ = 15828094080. Its totient is φ = 3318781440.

The previous prime is 7394939723. The next prime is 7394939731. The reversal of 7394939728 is 8279394937.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7394939723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252025 + ... + 279832.

It is an arithmetic number, because the mean of its divisors is an integer number (395702352).

Almost surely, 2^7394939728 is an apocalyptic number.

It is an amenable number.

7394939728 is an abundant number, since it is smaller than the sum of its proper divisors (8433154352).

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

7394939728 is a wasteful number, since it uses less digits than its factorization.

7394939728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531955 (or 531949 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 61.

The square root of 7394939728 is about 85993.8354069639. The cubic root of 7394939728 is about 1948.2508731624.

The spelling of 7394939728 in words is "seven billion, three hundred ninety-four million, nine hundred thirty-nine thousand, seven hundred twenty-eight".