215483312 has 20 divisors (see below), whose sum is σ = 455453736. Its totient is φ = 97946880.

The previous prime is 215483309. The next prime is 215483321. The reversal of 215483312 is 213384512.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 611993 + ... + 612344.

Almost surely, 2^215483312 is an apocalyptic number.

215483312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215483312 is an abundant number, since it is smaller than the sum of its proper divisors (239970424).

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

215483312 is a wasteful number, since it uses less digits than its factorization.

215483312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224356 (or 1224350 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 215483312 is about 14679.3498493632. The cubic root of 215483312 is about 599.5212032095.

The spelling of 215483312 in words is "two hundred fifteen million, four hundred eighty-three thousand, three hundred twelve".