442424004 has 48 divisors (see below), whose sum is σ = 1142055936. Its totient is φ = 132176800.

The previous prime is 442423999. The next prime is 442424009. The reversal of 442424004 is 400424244.

It is an interprime number because it is at equal distance from previous prime (442423999) and next prime (442424009).

It is not an unprimeable number, because it can be changed into a prime (442424009) 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, 14232 + ... + 32975.

It is an arithmetic number, because the mean of its divisors is an integer number (23792832).

Almost surely, 2^442424004 is an apocalyptic number.

442424004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442424004 is an abundant number, since it is smaller than the sum of its proper divisors (699631932).

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

442424004 is a wasteful number, since it uses less digits than its factorization.

442424004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47296 (or 47294 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 442424004 is about 21033.8775312589. The cubic root of 442424004 is about 761.9846581049.

Adding to 442424004 its reverse (400424244), we get a palindrome (842848248).

The spelling of 442424004 in words is "four hundred forty-two million, four hundred twenty-four thousand, four".