67222072 has 16 divisors (see below), whose sum is σ = 128973240. Its totient is φ = 32829216.

The previous prime is 67222049. The next prime is 67222121. The reversal of 67222072 is 27022276.

It is a self number, because there is not a number n which added to its sum of digits gives 67222072.

It is a congruent number.

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, 97363 + ... + 98050.

Almost surely, 2^67222072 is an apocalyptic number.

67222072 is the 4383-rd centered heptagonal number.

It is an amenable number.

67222072 is a deficient number, since it is larger than the sum of its proper divisors (61751168).

67222072 is a wasteful number, since it uses less digits than its factorization.

67222072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195462 (or 195458 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 67222072 is about 8198.9067563914. The cubic root of 67222072 is about 406.6030495606.

The spelling of 67222072 in words is "sixty-seven million, two hundred twenty-two thousand, seventy-two".