22413537 has 8 divisors (see below), whose sum is σ = 33205280. Its totient is φ = 14942340.

The previous prime is 22413529. The next prime is 22413539. The reversal of 22413537 is 73531422.

It is not a de Polignac number, because 22413537 - 2³ = 22413529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 830131 = 22413537 / (2 + 2 + 4 + 1 + 3 + 5 + 3 + 7).

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 22413537.

It is not an unprimeable number, because it can be changed into a prime (22413539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415039 + ... + 415092.

It is an arithmetic number, because the mean of its divisors is an integer number (4150660).

Almost surely, 2^22413537 is an apocalyptic number.

22413537 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22413537 is a deficient number, since it is larger than the sum of its proper divisors (10791743).

22413537 is an equidigital number, since it uses as much as digits as its factorization.

22413537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830140 (or 830134 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 22413537 is about 4734.2937171240. The cubic root of 22413537 is about 281.9487231349.

Adding to 22413537 its reverse (73531422), we get a palindrome (95944959).

It can be divided in two parts, 2241 and 3537, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 22413537 in words is "twenty-two million, four hundred thirteen thousand, five hundred thirty-seven".