442780142 has 32 divisors (see below), whose sum is σ = 802433280. Its totient is φ = 179003520.

The previous prime is 442780111. The next prime is 442780193. The reversal of 442780142 is 241087244.

It is a junction number, because it is equal to n+sod(n) for n = 442780099 and 442780108.

It is a congruent number.

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, 60653 + ... + 67559.

It is an arithmetic number, because the mean of its divisors is an integer number (25076040).

Almost surely, 2^442780142 is an apocalyptic number.

442780142 is a deficient number, since it is larger than the sum of its proper divisors (359653138).

442780142 is a wasteful number, since it uses less digits than its factorization.

442780142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7176.

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 442780142 is about 21042.3416472597. The cubic root of 442780142 is about 762.1890615029.

The spelling of 442780142 in words is "four hundred forty-two million, seven hundred eighty thousand, one hundred forty-two".