7449871392 has 72 divisors (see below), whose sum is σ = 21869003520. Its totient is φ = 2403181440.

The previous prime is 7449871381. The next prime is 7449871397. The reversal of 7449871392 is 2931789447.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (7449871397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 408292 + ... + 426147.

It is an arithmetic number, because the mean of its divisors is an integer number (303736160).

Almost surely, 2^7449871392 is an apocalyptic number.

7449871392 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7449871392 is an abundant number, since it is smaller than the sum of its proper divisors (14419132128).

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

7449871392 is a wasteful number, since it uses less digits than its factorization.

7449871392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834486 (or 834475 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 7449871392 is about 86312.6374988043. The cubic root of 7449871392 is about 1953.0630267617.

The spelling of 7449871392 in words is "seven billion, four hundred forty-nine million, eight hundred seventy-one thousand, three hundred ninety-two".