67072422 has 32 divisors (see below), whose sum is σ = 137825280. Its totient is φ = 21752640.

The previous prime is 67072391. The next prime is 67072459. The reversal of 67072422 is 22427076.

It is a self number, because there is not a number n which added to its sum of digits gives 67072422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32658 + ... + 34650.

It is an arithmetic number, because the mean of its divisors is an integer number (4307040).

Almost surely, 2^67072422 is an apocalyptic number.

67072422 is an abundant number, since it is smaller than the sum of its proper divisors (70752858).

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

67072422 is a wasteful number, since it uses less digits than its factorization.

67072422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 67072422 is about 8189.7754547973. The cubic root of 67072422 is about 406.3010983615.

Adding to 67072422 its reverse (22427076), we get a palindrome (89499498).

The spelling of 67072422 in words is "sixty-seven million, seventy-two thousand, four hundred twenty-two".