7216740 has 36 divisors (see below), whose sum is σ = 21891324. Its totient is φ = 1924416.

The previous prime is 7216723. The next prime is 7216757. The reversal of 7216740 is 476127.

It is an interprime number because it is at equal distance from previous prime (7216723) and next prime (7216757).

It can be written as a sum of positive squares in 2 ways, for example, as 1340964 + 5875776 = 1158^2 + 2424^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19867 + ... + 20226.

Almost surely, 2^7216740 is an apocalyptic number.

It is an amenable number.

7216740 is an abundant number, since it is smaller than the sum of its proper divisors (14674584).

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

7216740 is a wasteful number, since it uses less digits than its factorization.

7216740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40108 (or 40103 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 7216740 is about 2686.3990768313. The cubic root of 7216740 is about 193.2474119459.

The spelling of 7216740 in words is "seven million, two hundred sixteen thousand, seven hundred forty".