2215398530 has 16 divisors (see below), whose sum is σ = 3988282104. Its totient is φ = 886033920.

The previous prime is 2215398529. The next prime is 2215398547. The reversal of 2215398530 is 358935122.

It can be written as a sum of positive squares in 4 ways, for example, as 851647489 + 1363751041 = 29183^2 + 36929^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97010 + ... + 117650.

Almost surely, 2^2215398530 is an apocalyptic number.

2215398530 is a deficient number, since it is larger than the sum of its proper divisors (1772883574).

2215398530 is a wasteful number, since it uses less digits than its factorization.

2215398530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31381.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 2215398530 is about 47068.0202472974. The cubic root of 2215398530 is about 1303.6188183056.

The spelling of 2215398530 in words is "two billion, two hundred fifteen million, three hundred ninety-eight thousand, five hundred thirty".