67220364 has 12 divisors (see below), whose sum is σ = 156847544. Its totient is φ = 22406784.

The previous prime is 67220359. The next prime is 67220381. The reversal of 67220364 is 46302276.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2800837 + ... + 2800860.

Almost surely, 2^67220364 is an apocalyptic number.

It is an amenable number.

67220364 is an abundant number, since it is smaller than the sum of its proper divisors (89627180).

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

67220364 is a wasteful number, since it uses less digits than its factorization.

67220364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601704 (or 5601702 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 67220364 is about 8198.8025955014. The cubic root of 67220364 is about 406.5996058312.

The spelling of 67220364 in words is "sixty-seven million, two hundred twenty thousand, three hundred sixty-four".