7939492344 has 264 divisors, whose sum is σ = 26051090760. Its totient is φ = 2268426384.

The previous prime is 7939492307. The next prime is 7939492349. The reversal of 7939492344 is 4432949397.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a super-2 number, since 2×7939492344² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (5878656) is a multiple of the sum of its prime divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7939492349) by changing a digit.

It is a polite number, since it can be written in 65 ways as a sum of consecutive naturals, for example, 1134213189 + ... + 1134213195.

Almost surely, 2^7939492344 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 7939492344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13025545380).

7939492344 is an abundant number, since it is smaller than the sum of its proper divisors (18111598416).

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

7939492344 is an frugal number, since it uses more digits than its factorization.

7939492344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 12 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The square root of 7939492344 is about 89103.8290086346. The cubic root of 7939492344 is about 1994.9449292277.

The spelling of 7939492344 in words is "seven billion, nine hundred thirty-nine million, four hundred ninety-two thousand, three hundred forty-four".