422043012 has 36 divisors (see below), whose sum is σ = 1092855036. Its totient is φ = 137249280.

The previous prime is 422043007. The next prime is 422043019. The reversal of 422043012 is 210340224.

422043012 is a `hidden beast` number, since 4 + 220 + 430 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 410305536 = 3426^2 + 20256^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (422043019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141493 + ... + 144444.

Almost surely, 2^422043012 is an apocalyptic number.

It is an amenable number.

422043012 is an abundant number, since it is smaller than the sum of its proper divisors (670812024).

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

422043012 is a wasteful number, since it uses less digits than its factorization.

422043012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285988 (or 285983 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 422043012 is about 20543.6854531995. The cubic root of 422043012 is about 750.0995494526.

Adding to 422043012 its reverse (210340224), we get a palindrome (632383236).

The spelling of 422043012 in words is "four hundred twenty-two million, forty-three thousand, twelve".