220415431 has 8 divisors (see below), whose sum is σ = 223007904. Its totient is φ = 217831200.

The previous prime is 220415423. The next prime is 220415449. The reversal of 220415431 is 134514022.

220415431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 220415431 - 2³ = 220415423 is a prime.

It is a super-2 number, since 2×220415431² = 97165924445831522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220415131) 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, 63661 + ... + 67033.

It is an arithmetic number, because the mean of its divisors is an integer number (27875988).

Almost surely, 2^220415431 is an apocalyptic number.

220415431 is a deficient number, since it is larger than the sum of its proper divisors (2592473).

220415431 is a wasteful number, since it uses less digits than its factorization.

220415431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 220415431 is about 14846.3945454780. The cubic root of 220415431 is about 604.0608163182.

Adding to 220415431 its reverse (134514022), we get a palindrome (354929453).

It can be divided in two parts, 22041 and 5431, that added together give a palindrome (27472).

The spelling of 220415431 in words is "two hundred twenty million, four hundred fifteen thousand, four hundred thirty-one".