22415901 has 4 divisors (see below), whose sum is σ = 29887872. Its totient is φ = 14943932.

The previous prime is 22415867. The next prime is 22415917. The reversal of 22415901 is 10951422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22415901 - 2⁶ = 22415837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22415941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3735981 + ... + 3735986.

It is an arithmetic number, because the mean of its divisors is an integer number (7471968).

Almost surely, 2^22415901 is an apocalyptic number.

It is an amenable number.

22415901 is a deficient number, since it is larger than the sum of its proper divisors (7471971).

22415901 is an equidigital number, since it uses as much as digits as its factorization.

22415901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7471970.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 22415901 is about 4734.5433781939. The cubic root of 22415901 is about 281.9586353492.

The spelling of 22415901 in words is "twenty-two million, four hundred fifteen thousand, nine hundred one".