7215480 has 160 divisors (see below), whose sum is σ = 25874640. Its totient is φ = 1797120.

The previous prime is 7215479. The next prime is 7215499. The reversal of 7215480 is 845127.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 55015 + ... + 55145.

Almost surely, 2^7215480 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 7215480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12937320).

7215480 is an abundant number, since it is smaller than the sum of its proper divisors (18659160).

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

7215480 is a wasteful number, since it uses less digits than its factorization.

7215480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 7215480 is about 2686.1645519216. The cubic root of 7215480 is about 193.2361646740.

The spelling of 7215480 in words is "seven million, two hundred fifteen thousand, four hundred eighty".