7215430 has 16 divisors (see below), whose sum is σ = 13024800. Its totient is φ = 2877952.

The previous prime is 7215427. The next prime is 7215433. The reversal of 7215430 is 345127.

It is an interprime number because it is at equal distance from previous prime (7215427) and next prime (7215433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7215433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3687 + ... + 5293.

It is an arithmetic number, because the mean of its divisors is an integer number (814050).

Almost surely, 2^7215430 is an apocalyptic number.

7215430 is a deficient number, since it is larger than the sum of its proper divisors (5809370).

7215430 is a wasteful number, since it uses less digits than its factorization.

7215430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 7215430 is about 2686.1552449551. The cubic root of 7215430 is about 193.2357183267.

The spelling of 7215430 in words is "seven million, two hundred fifteen thousand, four hundred thirty".