22790019 has 16 divisors (see below), whose sum is σ = 34913792. Its totient is φ = 12953088.

The previous prime is 22790017. The next prime is 22790029. The reversal of 22790019 is 91009722.

It is not a de Polignac number, because 22790019 - 2¹ = 22790017 is a prime.

It is a super-2 number, since 2×22790019² = 1038769932040722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22790017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242 + ... + 6864.

It is an arithmetic number, because the mean of its divisors is an integer number (2182112).

Almost surely, 2^22790019 is an apocalyptic number.

22790019 is a deficient number, since it is larger than the sum of its proper divisors (12123773).

22790019 is a wasteful number, since it uses less digits than its factorization.

22790019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5826.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 22790019 is about 4773.8892949041. The cubic root of 22790019 is about 283.5186043923.

The spelling of 22790019 in words is "twenty-two million, seven hundred ninety thousand, nineteen".