68199264 has 72 divisors (see below), whose sum is σ = 221654160. Its totient is φ = 19484928.

The previous prime is 68199259. The next prime is 68199283. The reversal of 68199264 is 46299186.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×68199264² = 9302279220283392, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 14899 + ... + 18930.

It is an arithmetic number, because the mean of its divisors is an integer number (3078530).

Almost surely, 2^68199264 is an apocalyptic number.

It is an amenable number.

68199264 is an abundant number, since it is smaller than the sum of its proper divisors (153454896).

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

68199264 is a wasteful number, since it uses less digits than its factorization.

68199264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33852 (or 33841 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 68199264 is about 8258.2845676327. The cubic root of 68199264 is about 408.5638110584.

The spelling of 68199264 in words is "sixty-eight million, one hundred ninety-nine thousand, two hundred sixty-four".