67290880 has 36 divisors (see below), whose sum is σ = 161185752. Its totient is φ = 26915840.

The previous prime is 67290877. The next prime is 67290907. The reversal of 67290880 is 8809276.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25006 + ... + 27565.

It is an arithmetic number, because the mean of its divisors is an integer number (4477382).

Almost surely, 2^67290880 is an apocalyptic number.

It is an amenable number.

67290880 is an abundant number, since it is smaller than the sum of its proper divisors (93894872).

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

67290880 is an equidigital number, since it uses as much as digits as its factorization.

67290880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52592 (or 52578 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 67290880 is about 8203.1018523483. The cubic root of 67290880 is about 406.7417341789.

The spelling of 67290880 in words is "sixty-seven million, two hundred ninety thousand, eight hundred eighty".