22066974 has 24 divisors (see below), whose sum is σ = 48715992. Its totient is φ = 7216560.

The previous prime is 22066973. The next prime is 22066981. The reversal of 22066974 is 47966022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22066973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10612 + ... + 12519.

It is an arithmetic number, because the mean of its divisors is an integer number (2029833).

Almost surely, 2^22066974 is an apocalyptic number.

22066974 is an abundant number, since it is smaller than the sum of its proper divisors (26649018).

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

22066974 is a wasteful number, since it uses less digits than its factorization.

22066974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23192 (or 23189 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 22066974 is about 4697.5497868570. The cubic root of 22066974 is about 280.4879840812.

It can be divided in two parts, 2206 and 6974, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 22066974 in words is "twenty-two million, sixty-six thousand, nine hundred seventy-four".