67363640 has 16 divisors (see below), whose sum is σ = 151568280. Its totient is φ = 26945440.

The previous prime is 67363613. The next prime is 67363657. The reversal of 67363640 is 4636376.

It is a self number, because there is not a number n which added to its sum of digits gives 67363640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842006 + ... + 842085.

Almost surely, 2^67363640 is an apocalyptic number.

It is an amenable number.

67363640 is an abundant number, since it is smaller than the sum of its proper divisors (84204640).

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

67363640 is a wasteful number, since it uses less digits than its factorization.

67363640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684102 (or 1684098 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 67363640 is about 8207.5355619089. The cubic root of 67363640 is about 406.8882813701. Note that the first 3 decimals are identical.

The spelling of 67363640 in words is "sixty-seven million, three hundred sixty-three thousand, six hundred forty".