420888111 has 16 divisors (see below), whose sum is σ = 642290688. Its totient is φ = 240156000.

The previous prime is 420888089. The next prime is 420888119. The reversal of 420888111 is 111888024.

It is not a de Polignac number, because 420888111 - 2¹³ = 420879919 is a prime.

It is a super-2 number, since 2×420888111² = 354293603962296642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420888119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426 + ... + 29016.

It is an arithmetic number, because the mean of its divisors is an integer number (40143168).

Almost surely, 2^420888111 is an apocalyptic number.

420888111 is a deficient number, since it is larger than the sum of its proper divisors (221402577).

420888111 is a wasteful number, since it uses less digits than its factorization.

420888111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29302.

The product of its (nonzero) digits is 4096, while the sum is 33.

The square root of 420888111 is about 20515.5577794024. The cubic root of 420888111 is about 749.4147202712.

The spelling of 420888111 in words is "four hundred twenty million, eight hundred eighty-eight thousand, one hundred eleven".