22273704 has 80 divisors (see below), whose sum is σ = 64142100. Its totient is φ = 7216128.

The previous prime is 22273703. The next prime is 22273721. The reversal of 22273704 is 40737222.

It can be written as a sum of positive squares in 2 ways, for example, as 22071204 + 202500 = 4698^2 + 450^2 .

It is a super-2 number, since 2×22273704² = 992235779759232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22273703) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23512 + ... + 24440.

Almost surely, 2^22273704 is an apocalyptic number.

22273704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22273704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32071050).

22273704 is an abundant number, since it is smaller than the sum of its proper divisors (41868396).

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

22273704 is a wasteful number, since it uses less digits than its factorization.

22273704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 22273704 is about 4719.5025161557. The cubic root of 22273704 is about 281.3611613921.

The spelling of 22273704 in words is "twenty-two million, two hundred seventy-three thousand, seven hundred four".