67422636 has 36 divisors (see below), whose sum is σ = 172979352. Its totient is φ = 22137984.

The previous prime is 67422611. The next prime is 67422653. The reversal of 67422636 is 63622476.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 67422636.

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, 11565 + ... + 16388.

It is an arithmetic number, because the mean of its divisors is an integer number (4804982).

Almost surely, 2^67422636 is an apocalyptic number.

It is an amenable number.

67422636 is an abundant number, since it is smaller than the sum of its proper divisors (105556716).

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

67422636 is a wasteful number, since it uses less digits than its factorization.

67422636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28030 (or 28025 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 67422636 is about 8211.1287896367. The cubic root of 67422636 is about 407.0070287972.

The spelling of 67422636 in words is "sixty-seven million, four hundred twenty-two thousand, six hundred thirty-six".