22040013 has 8 divisors (see below), whose sum is σ = 29416608. Its totient is φ = 14678384.

The previous prime is 22040009. The next prime is 22040023. The reversal of 22040013 is 31004022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22040013 - 2² = 22040009 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040023) 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, 331 + ... + 6647.

It is an arithmetic number, because the mean of its divisors is an integer number (3677076).

Almost surely, 2^22040013 is an apocalyptic number.

It is an amenable number.

22040013 is a deficient number, since it is larger than the sum of its proper divisors (7376595).

22040013 is a wasteful number, since it uses less digits than its factorization.

22040013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7483.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22040013 is about 4694.6792222685. The cubic root of 22040013 is about 280.3737059382.

Adding to 22040013 its reverse (31004022), we get a palindrome (53044035).

The spelling of 22040013 in words is "twenty-two million, forty thousand, thirteen".