67224724 has 12 divisors (see below), whose sum is σ = 134449504. Its totient is φ = 28810584.

The previous prime is 67224721. The next prime is 67224727. The reversal of 67224724 is 42742276.

It is an interprime number because it is at equal distance from previous prime (67224721) and next prime (67224727).

67224724 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 67224724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67224721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200414 + ... + 1200469.

Almost surely, 2^67224724 is an apocalyptic number.

It is an amenable number.

67224724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67224724 is a wasteful number, since it uses less digits than its factorization.

67224724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400894 (or 2400892 counting only the distinct ones).

The product of its digits is 37632, while the sum is 34.

The square root of 67224724 is about 8199.0684836754. The cubic root of 67224724 is about 406.6083965004.

The spelling of 67224724 in words is "sixty-seven million, two hundred twenty-four thousand, seven hundred twenty-four".