442258744 has 16 divisors (see below), whose sum is σ = 872879400. Its totient is φ = 209490912.

The previous prime is 442258717. The next prime is 442258753. The reversal of 442258744 is 447852244.

It is a junction number, because it is equal to n+sod(n) for n = 442258697 and 442258706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1454647 + ... + 1454950.

Almost surely, 2^442258744 is an apocalyptic number.

It is an amenable number.

442258744 is a deficient number, since it is larger than the sum of its proper divisors (430620656).

442258744 is a wasteful number, since it uses less digits than its factorization.

442258744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2909622 (or 2909618 counting only the distinct ones).

The product of its digits is 286720, while the sum is 40.

The square root of 442258744 is about 21029.9487398329. The cubic root of 442258744 is about 761.8897707978.

The spelling of 442258744 in words is "four hundred forty-two million, two hundred fifty-eight thousand, seven hundred forty-four".