67912320 has 256 divisors, whose sum is σ = 256942080. Its totient is φ = 14929920.

The previous prime is 67912309. The next prime is 67912333. The reversal of 67912320 is 2321976.

It is a super-2 number, since 2×67912320² = 9224166415564800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 416559 + ... + 416721.

It is an arithmetic number, because the mean of its divisors is an integer number (1003680).

Almost surely, 2^67912320 is an apocalyptic number.

67912320 is a gapful number since it is divisible by the number (60) 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 67912320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128471040).

67912320 is an abundant number, since it is smaller than the sum of its proper divisors (189029760).

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

67912320 is a wasteful number, since it uses less digits than its factorization.

67912320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 67912320 is about 8240.8931554777. The cubic root of 67912320 is about 407.9900035998.

The spelling of 67912320 in words is "sixty-seven million, nine hundred twelve thousand, three hundred twenty".