22244019 has 32 divisors (see below), whose sum is σ = 35782656. Its totient is φ = 12022560.

The previous prime is 22244011. The next prime is 22244069. The reversal of 22244019 is 91044222.

It is not a de Polignac number, because 22244019 - 2³ = 22244011 is a prime.

It is a super-2 number, since 2×22244019² = 989592762544722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22244019.

It is not an unprimeable number, because it can be changed into a prime (22244011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30234 + ... + 30960.

It is an arithmetic number, because the mean of its divisors is an integer number (1118208).

Almost surely, 2^22244019 is an apocalyptic number.

22244019 is a deficient number, since it is larger than the sum of its proper divisors (13538637).

22244019 is a wasteful number, since it uses less digits than its factorization.

22244019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22244019 is about 4716.3565386853. The cubic root of 22244019 is about 281.2361123019.

It can be divided in two parts, 2 and 2244019, that added together give a triangular number (2244021 = T₂₁₁₈).

The spelling of 22244019 in words is "twenty-two million, two hundred forty-four thousand, nineteen".