22774072 has 8 divisors (see below), whose sum is σ = 42701400. Its totient is φ = 11387032.

The previous prime is 22774069. The next prime is 22774079. The reversal of 22774072 is 27047722.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×22774072² = 1037316710922368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22774079) by changing a digit.

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 as a sum of consecutive naturals, namely, 1423372 + ... + 1423387.

It is an arithmetic number, because the mean of its divisors is an integer number (5337675).

Almost surely, 2^22774072 is an apocalyptic number.

It is an amenable number.

22774072 is a deficient number, since it is larger than the sum of its proper divisors (19927328).

22774072 is a wasteful number, since it uses less digits than its factorization.

22774072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846765 (or 2846761 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 22774072 is about 4772.2187711797. The cubic root of 22774072 is about 283.4524595570.

The spelling of 22774072 in words is "twenty-two million, seven hundred seventy-four thousand, seventy-two".