7215030 has 24 divisors (see below), whose sum is σ = 18759312. Its totient is φ = 1923984.

The previous prime is 7215011. The next prime is 7215053. The reversal of 7215030 is 305127.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 7214994 and 7215012.

It is a congruent number.

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, 39994 + ... + 40173.

It is an arithmetic number, because the mean of its divisors is an integer number (781638).

Almost surely, 2^7215030 is an apocalyptic number.

7215030 is an abundant number, since it is smaller than the sum of its proper divisors (11544282).

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

7215030 is a wasteful number, since it uses less digits than its factorization.

7215030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80180 (or 80177 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 7215030 is about 2686.0807880628. The cubic root of 7215030 is about 193.2321474739.

Subtracting from 7215030 its reverse (305127), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 7215030 in words is "seven million, two hundred fifteen thousand, thirty".