22404619 has 2 divisors, whose sum is σ = 22404620. Its totient is φ = 22404618.

The previous prime is 22404541. The next prime is 22404631. The reversal of 22404619 is 91640422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22404619 - 2¹¹ = 22402571 is a prime.

It is a super-2 number, since 2×22404619² = 1003933905070322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22404659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11202309 + 11202310.

It is an arithmetic number, because the mean of its divisors is an integer number (11202310).

Almost surely, 2^22404619 is an apocalyptic number.

22404619 is a deficient number, since it is larger than the sum of its proper divisors (1).

22404619 is an equidigital number, since it uses as much as digits as its factorization.

22404619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22404619 is about 4733.3517722646. The cubic root of 22404619 is about 281.9113238276.

It can be divided in two parts, 2240 and 4619, that added together give a cube (6859 = 19³).

The spelling of 22404619 in words is "twenty-two million, four hundred four thousand, six hundred nineteen".