215008992 has 120 divisors (see below), whose sum is σ = 689911992. Its totient is φ = 65145600.

The previous prime is 215008951. The next prime is 215008999. The reversal of 215008992 is 299800512.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215008999) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24742 + ... + 32282.

Almost surely, 2^215008992 is an apocalyptic number.

215008992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215008992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344955996).

215008992 is an abundant number, since it is smaller than the sum of its proper divisors (474903000).

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

215008992 is a wasteful number, since it uses less digits than its factorization.

215008992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574 (or 7557 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 215008992 is about 14663.1849200643. The cubic root of 215008992 is about 599.0809930959.

It can be divided in two parts, 215008 and 992, that added together give a cube (216000 = 60³).

The spelling of 215008992 in words is "two hundred fifteen million, eight thousand, nine hundred ninety-two".