442104240 has 40 divisors (see below), whose sum is σ = 1370523888. Its totient is φ = 117894400.

The previous prime is 442104239. The next prime is 442104259. The reversal of 442104240 is 42401244.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920811 + ... + 921290.

Almost surely, 2^442104240 is an apocalyptic number.

442104240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442104240 is an abundant number, since it is smaller than the sum of its proper divisors (928419648).

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

442104240 is a wasteful number, since it uses less digits than its factorization.

442104240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842117 (or 1842111 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 442104240 is about 21026.2749910677. The cubic root of 442104240 is about 761.8010378789.

Adding to 442104240 its reverse (42401244), we get a palindrome (484505484).

The spelling of 442104240 in words is "four hundred forty-two million, one hundred four thousand, two hundred forty".