22040015 has 8 divisors (see below), whose sum is σ = 26475120. Its totient is φ = 17613952.

The previous prime is 22040009. The next prime is 22040023. The reversal of 22040015 is 51004022.

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 22040015 - 2⁴ = 22039999 is a prime.

It is a super-2 number, since 2×22040015² = 971524522400450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5591 + ... + 8679.

It is an arithmetic number, because the mean of its divisors is an integer number (3309390).

Almost surely, 2^22040015 is an apocalyptic number.

22040015 is a deficient number, since it is larger than the sum of its proper divisors (4435105).

22040015 is a wasteful number, since it uses less digits than its factorization.

22040015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 22040015 is about 4694.6794352756. The cubic root of 22040015 is about 280.3737144189.

Adding to 22040015 its reverse (51004022), we get a palindrome (73044037).

The spelling of 22040015 in words is "twenty-two million, forty thousand, fifteen".