7442724 has 12 divisors (see below), whose sum is σ = 17366384. Its totient is φ = 2480904.

The previous prime is 7442681. The next prime is 7442749. The reversal of 7442724 is 4272447.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 7442691 and 7442700.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310102 + ... + 310125.

Almost surely, 2^7442724 is an apocalyptic number.

It is an amenable number.

7442724 is an abundant number, since it is smaller than the sum of its proper divisors (9923660).

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

7442724 is a wasteful number, since it uses less digits than its factorization.

7442724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620234 (or 620232 counting only the distinct ones).

The product of its digits is 12544, while the sum is 30.

The square root of 7442724 is about 2728.1356271271. The cubic root of 7442724 is about 195.2438238633.

The spelling of 7442724 in words is "seven million, four hundred forty-two thousand, seven hundred twenty-four".