20240015 has 8 divisors (see below), whose sum is σ = 24524448. Its totient is φ = 16034400.

The previous prime is 20239991. The next prime is 20240021. The reversal of 20240015 is 51004202.

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

It is not a de Polignac number, because 20240015 - 2⁶ = 20239951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19136 + ... + 20165.

It is an arithmetic number, because the mean of its divisors is an integer number (3065556).

Almost surely, 2^20240015 is an apocalyptic number.

20240015 is a deficient number, since it is larger than the sum of its proper divisors (4284433).

20240015 is a wasteful number, since it uses less digits than its factorization.

20240015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39409.

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

The square root of 20240015 is about 4498.8904187588. The cubic root of 20240015 is about 272.5232816850.

Adding to 20240015 its reverse (51004202), we get a palindrome (71244217).

The spelling of 20240015 in words is "twenty million, two hundred forty thousand, fifteen".