442863031 has 12 divisors (see below), whose sum is σ = 493954552. Its totient is φ = 394690464.

The previous prime is 442863007. The next prime is 442863037. The reversal of 442863031 is 130368244.

It is not a de Polignac number, because 442863031 - 2¹¹ = 442860983 is a prime.

It is a super-2 number, since 2×442863031² = 392255328453013922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 442862984 and 442863002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442863037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9321 + ... + 31186.

Almost surely, 2^442863031 is an apocalyptic number.

442863031 is a deficient number, since it is larger than the sum of its proper divisors (51091521).

442863031 is a wasteful number, since it uses less digits than its factorization.

442863031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40578 (or 40549 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 442863031 is about 21044.3111315149. The cubic root of 442863031 is about 762.2366194527.

The spelling of 442863031 in words is "four hundred forty-two million, eight hundred sixty-three thousand, thirty-one".