22002045 has 16 divisors (see below), whose sum is σ = 37911552. Its totient is φ = 10831680.

The previous prime is 22002031. The next prime is 22002061. The reversal of 22002045 is 54020022.

It is not a de Polignac number, because 22002045 - 2⁹ = 22001533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56221 + ... + 56610.

It is an arithmetic number, because the mean of its divisors is an integer number (2369472).

Almost surely, 2^22002045 is an apocalyptic number.

It is an amenable number.

22002045 is a deficient number, since it is larger than the sum of its proper divisors (15909507).

22002045 is a wasteful number, since it uses less digits than its factorization.

22002045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112852.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 22002045 is about 4690.6337524902. The cubic root of 22002045 is about 280.2126148730.

Adding to 22002045 its reverse (54020022), we get a palindrome (76022067).

The spelling of 22002045 in words is "twenty-two million, two thousand, forty-five".