67220426 has 24 divisors (see below), whose sum is σ = 124785504. Its totient is φ = 26591760.

The previous prime is 67220401. The next prime is 67220441. The reversal of 67220426 is 62402276.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 11840 + ... + 16571.

It is an arithmetic number, because the mean of its divisors is an integer number (5199396).

Almost surely, 2^67220426 is an apocalyptic number.

67220426 is a deficient number, since it is larger than the sum of its proper divisors (57565078).

67220426 is a wasteful number, since it uses less digits than its factorization.

67220426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28446 (or 28433 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 67220426 is about 8198.8063765404. The cubic root of 67220426 is about 406.5997308387.

The spelling of 67220426 in words is "sixty-seven million, two hundred twenty thousand, four hundred twenty-six".