7742736 has 40 divisors (see below), whose sum is σ = 22225760. Its totient is φ = 2580768.

The previous prime is 7742723. The next prime is 7742737. The reversal of 7742736 is 6372477.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 7742736.

It is not an unprimeable number, because it can be changed into a prime (7742737) 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, 8530 + ... + 9393.

It is an arithmetic number, because the mean of its divisors is an integer number (555644).

Almost surely, 2^7742736 is an apocalyptic number.

It is an amenable number.

7742736 is an abundant number, since it is smaller than the sum of its proper divisors (14483024).

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

7742736 is a wasteful number, since it uses less digits than its factorization.

7742736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17940 (or 17928 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 7742736 is about 2782.5772226481. The cubic root of 7742736 is about 197.8327329319.

The spelling of 7742736 in words is "seven million, seven hundred forty-two thousand, seven hundred thirty-six".