7400736 has 72 divisors (see below), whose sum is σ = 24058944. Its totient is φ = 2113920.

The previous prime is 7400719. The next prime is 7400737. The reversal of 7400736 is 6370047.

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 (7400737) 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, 181 + ... + 3851.

It is an arithmetic number, because the mean of its divisors is an integer number (334152).

Almost surely, 2^7400736 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 7400736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12029472).

7400736 is an abundant number, since it is smaller than the sum of its proper divisors (16658208).

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

7400736 is a wasteful number, since it uses less digits than its factorization.

7400736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694 (or 3683 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 7400736 is about 2720.4293778740. The cubic root of 7400736 is about 194.8759763622.

The spelling of 7400736 in words is "seven million, four hundred thousand, seven hundred thirty-six".