22037005 has 4 divisors (see below), whose sum is σ = 26444412. Its totient is φ = 17629600.

The previous prime is 22036999. The next prime is 22037009. The reversal of 22037005 is 50073022.

It is a happy number.

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 17288964 + 4748041 = 4158^2 + 2179^2 .

It is not a de Polignac number, because 22037005 - 2⁹ = 22036493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22037009) 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, 2203696 + ... + 2203705.

It is an arithmetic number, because the mean of its divisors is an integer number (6611103).

Almost surely, 2^22037005 is an apocalyptic number.

It is an amenable number.

22037005 is a deficient number, since it is larger than the sum of its proper divisors (4407407).

22037005 is an equidigital number, since it uses as much as digits as its factorization.

22037005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407406.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 22037005 is about 4694.3588486608. The cubic root of 22037005 is about 280.3609503124.

The spelling of 22037005 in words is "twenty-two million, thirty-seven thousand, five".