67140608 has 44 divisors (see below), whose sum is σ = 135347640. Its totient is φ = 33288192.

The previous prime is 67140571. The next prime is 67140613. The reversal of 67140608 is 80604176.

It is a super-2 number, since 2×67140608² = 9015722485219328, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176963 + ... + 177341.

Almost surely, 2^67140608 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 67140608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67673820).

67140608 is an abundant number, since it is smaller than the sum of its proper divisors (68207032).

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

67140608 is a wasteful number, since it uses less digits than its factorization.

67140608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 67140608 is about 8193.9372709339. The cubic root of 67140608 is about 406.4387339856.

The spelling of 67140608 in words is "sixty-seven million, one hundred forty thousand, six hundred eight".