20412735 has 32 divisors (see below), whose sum is σ = 37949952. Its totient is φ = 9175680.

The previous prime is 20412727. The next prime is 20412797. The reversal of 20412735 is 53721402.

It is not a de Polignac number, because 20412735 - 2³ = 20412727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4812 + ... + 7998.

It is an arithmetic number, because the mean of its divisors is an integer number (1185936).

Almost surely, 2^20412735 is an apocalyptic number.

20412735 is a deficient number, since it is larger than the sum of its proper divisors (17537217).

20412735 is a wasteful number, since it uses less digits than its factorization.

20412735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20412735 is about 4518.0454844988. The cubic root of 20412735 is about 273.2962876953.

The spelling of 20412735 in words is "twenty million, four hundred twelve thousand, seven hundred thirty-five".