22601839 has 4 divisors (see below), whose sum is σ = 24340456. Its totient is φ = 20863224.

The previous prime is 22601837. The next prime is 22601861. The reversal of 22601839 is 93810622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93810622 = 2 ⋅46905311.

It is a cyclic number.

It is not a de Polignac number, because 22601839 - 2¹ = 22601837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22601839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22601837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869289 + ... + 869314.

It is an arithmetic number, because the mean of its divisors is an integer number (6085114).

Almost surely, 2^22601839 is an apocalyptic number.

22601839 is a deficient number, since it is larger than the sum of its proper divisors (1738617).

22601839 is a wasteful number, since it uses less digits than its factorization.

22601839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738616.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 22601839 is about 4754.1391439460. The cubic root of 22601839 is about 282.7360973004.

The spelling of 22601839 in words is "twenty-two million, six hundred one thousand, eight hundred thirty-nine".