67221374 has 16 divisors (see below), whose sum is σ = 112340736. Its totient is φ = 29904600.

The previous prime is 67221367. The next prime is 67221397. The reversal of 67221374 is 47312276.

It is a self number, because there is not a number n which added to its sum of digits gives 67221374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31472 + ... + 33539.

It is an arithmetic number, because the mean of its divisors is an integer number (7021296).

Almost surely, 2^67221374 is an apocalyptic number.

67221374 is a deficient number, since it is larger than the sum of its proper divisors (45119362).

67221374 is a wasteful number, since it uses less digits than its factorization.

67221374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65071.

The product of its digits is 14112, while the sum is 32.

The square root of 67221374 is about 8198.8641896302. The cubic root of 67221374 is about 406.6016422356.

The spelling of 67221374 in words is "sixty-seven million, two hundred twenty-one thousand, three hundred seventy-four".