22047426 has 12 divisors (see below), whose sum is σ = 47769462. Its totient is φ = 7349136.

The previous prime is 22047401. The next prime is 22047427. The reversal of 22047426 is 62474022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16040025 + 6007401 = 4005^2 + 2451^2 .

It is a super-3 number, since 3×22047426³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22047426.

It is not an unprimeable number, because it can be changed into a prime (22047427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 612411 + ... + 612446.

Almost surely, 2^22047426 is an apocalyptic number.

22047426 is an abundant number, since it is smaller than the sum of its proper divisors (25722036).

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

22047426 is a wasteful number, since it uses less digits than its factorization.

22047426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224865 (or 1224862 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 22047426 is about 4695.4686667041. The cubic root of 22047426 is about 280.4051363084.

The spelling of 22047426 in words is "twenty-two million, forty-seven thousand, four hundred twenty-six".