442038810 has 16 divisors (see below), whose sum is σ = 1060893216. Its totient is φ = 117877008.

The previous prime is 442038809. The next prime is 442038833. The reversal of 442038810 is 18830244.

It is a super-2 number, since 2×442038810² = 390796619092432200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 14734627 = 442038810 / (4 + 4 + 2 + 0 + 3 + 8 + 8 + 1 + 0).

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, 7367284 + ... + 7367343.

It is an arithmetic number, because the mean of its divisors is an integer number (66305826).

Almost surely, 2^442038810 is an apocalyptic number.

442038810 is an abundant number, since it is smaller than the sum of its proper divisors (618854406).

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

442038810 is a wasteful number, since it uses less digits than its factorization.

442038810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14734637.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 442038810 is about 21024.7190230928. The cubic root of 442038810 is about 761.7634546602.

The spelling of 442038810 in words is "four hundred forty-two million, thirty-eight thousand, eight hundred ten".