22250449 has 4 divisors (see below), whose sum is σ = 23962036. Its totient is φ = 20538864.

The previous prime is 22250447. The next prime is 22250471. The reversal of 22250449 is 94405222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8225424 + 14025025 = 2868^2 + 3745^2 .

It is a cyclic number.

It is not a de Polignac number, because 22250449 - 2¹ = 22250447 is a prime.

It is a super-3 number, since 3×22250449³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22250443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855774 + ... + 855799.

It is an arithmetic number, because the mean of its divisors is an integer number (5990509).

Almost surely, 2^22250449 is an apocalyptic number.

It is an amenable number.

22250449 is a deficient number, since it is larger than the sum of its proper divisors (1711587).

22250449 is a wasteful number, since it uses less digits than its factorization.

22250449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711586.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 22250449 is about 4717.0381596930. The cubic root of 22250449 is about 281.2632083344.

The spelling of 22250449 in words is "twenty-two million, two hundred fifty thousand, four hundred forty-nine".