7742672244 has 72 divisors (see below), whose sum is σ = 20119252608. Its totient is φ = 2508822720.

The previous prime is 7742672209. The next prime is 7742672279. The reversal of 7742672244 is 4422762477.

It is an interprime number because it is at equal distance from previous prime (7742672209) and next prime (7742672279).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7742672244.

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, 2010729 + ... + 2014575.

It is an arithmetic number, because the mean of its divisors is an integer number (279434064).

Almost surely, 2^7742672244 is an apocalyptic number.

7742672244 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7742672244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10059626304).

7742672244 is an abundant number, since it is smaller than the sum of its proper divisors (12376580364).

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

7742672244 is a wasteful number, since it uses less digits than its factorization.

7742672244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405 (or 5400 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 45.

The square root of 7742672244 is about 87992.4556084213. The cubic root of 7742672244 is about 1978.3218992581.

The spelling of 7742672244 in words is "seven billion, seven hundred forty-two million, six hundred seventy-two thousand, two hundred forty-four".