423424044 has 48 divisors (see below), whose sum is σ = 1155548800. Its totient is φ = 133712208.

The previous prime is 423424033. The next prime is 423424069. The reversal of 423424044 is 440424324.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 423423999 and 423424017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101122 + ... + 105225.

Almost surely, 2^423424044 is an apocalyptic number.

It is an amenable number.

423424044 is an abundant number, since it is smaller than the sum of its proper divisors (732124756).

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

423424044 is a wasteful number, since it uses less digits than its factorization.

423424044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206379 (or 206371 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 423424044 is about 20577.2700813300. The cubic root of 423424044 is about 750.9168307718.

Adding to 423424044 its reverse (440424324), we get a palindrome (863848368).

The spelling of 423424044 in words is "four hundred twenty-three million, four hundred twenty-four thousand, forty-four".