7215402 has 32 divisors (see below), whose sum is σ = 15321600. Its totient is φ = 2258928.

The previous prime is 7215401. The next prime is 7215413. The reversal of 7215402 is 2045127.

It is not an unprimeable number, because it can be changed into a prime (7215401) 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 15 ways as a sum of consecutive naturals, for example, 18849 + ... + 19227.

It is an arithmetic number, because the mean of its divisors is an integer number (478800).

Almost surely, 2^7215402 is an apocalyptic number.

7215402 is an abundant number, since it is smaller than the sum of its proper divisors (8106198).

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

7215402 is a wasteful number, since it uses less digits than its factorization.

7215402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 7215402 is about 2686.1500330399. The cubic root of 7215402 is about 193.2354683713.

The spelling of 7215402 in words is "seven million, two hundred fifteen thousand, four hundred two".