420400112 has 20 divisors (see below), whose sum is σ = 888573336. Its totient is φ = 191090880.

The previous prime is 420400093. The next prime is 420400117. The reversal of 420400112 is 211004024.

It is a super-2 number, since 2×420400112² = 353472508339225088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420400117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194143 + ... + 1194494.

Almost surely, 2^420400112 is an apocalyptic number.

It is an amenable number.

420400112 is an abundant number, since it is smaller than the sum of its proper divisors (468173224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420400112 is a wasteful number, since it uses less digits than its factorization.

420400112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388656 (or 2388650 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 420400112 is about 20503.6609414026. The cubic root of 420400112 is about 749.1249717942.

Adding to 420400112 its reverse (211004024), we get a palindrome (631404136).

The spelling of 420400112 in words is "four hundred twenty million, four hundred thousand, one hundred twelve".