22457684 has 6 divisors (see below), whose sum is σ = 39300954. Its totient is φ = 11228840.

The previous prime is 22457657. The next prime is 22457689. The reversal of 22457684 is 48675422.

It can be written as a sum of positive squares in only one way, i.e., 15382084 + 7075600 = 3922^2 + 2660^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22457689) 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 as a sum of consecutive naturals, namely, 2807207 + ... + 2807214.

It is an arithmetic number, because the mean of its divisors is an integer number (6550159).

Almost surely, 2^22457684 is an apocalyptic number.

It is an amenable number.

22457684 is a deficient number, since it is larger than the sum of its proper divisors (16843270).

22457684 is a wasteful number, since it uses less digits than its factorization.

22457684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614425 (or 5614423 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 22457684 is about 4738.9538930021. The cubic root of 22457684 is about 282.1337159062.

The spelling of 22457684 in words is "twenty-two million, four hundred fifty-seven thousand, six hundred eighty-four".