99215340 has 96 divisors (see below), whose sum is σ = 334225920. Its totient is φ = 21482496.

The previous prime is 99215309. The next prime is 99215357. The reversal of 99215340 is 4351299.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1764 + ... + 14196.

It is an arithmetic number, because the mean of its divisors is an integer number (3481520).

Almost surely, 2^99215340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99215340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167112960).

99215340 is an abundant number, since it is smaller than the sum of its proper divisors (235010580).

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

99215340 is a wasteful number, since it uses less digits than its factorization.

99215340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12471 (or 12469 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 99215340 is about 9960.6897351539. The cubic root of 99215340 is about 462.9416710974.

The spelling of 99215340 in words is "ninety-nine million, two hundred fifteen thousand, three hundred forty".