20412355 has 8 divisors (see below), whose sum is σ = 24651792. Its totient is φ = 16225248.

The previous prime is 20412349. The next prime is 20412377. The reversal of 20412355 is 55321402.

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 20412355 - 2⁹ = 20411843 is a prime.

It is a Duffinian 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, 12217 + ... + 13786.

It is an arithmetic number, because the mean of its divisors is an integer number (3081474).

Almost surely, 2^20412355 is an apocalyptic number.

20412355 is a deficient number, since it is larger than the sum of its proper divisors (4239437).

20412355 is a wasteful number, since it uses less digits than its factorization.

20412355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26165.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 20412355 is about 4518.0034307203. The cubic root of 20412355 is about 273.2945918057.

Adding to 20412355 its reverse (55321402), we get a palindrome (75733757).

The spelling of 20412355 in words is "twenty million, four hundred twelve thousand, three hundred fifty-five".