442000426 has 16 divisors (see below), whose sum is σ = 783843840. Its totient is φ = 182896560.

The previous prime is 442000423. The next prime is 442000451. The reversal of 442000426 is 624000244.

It is a junction number, because it is equal to n+sod(n) for n = 442000397 and 442000406.

It is not an unprimeable number, because it can be changed into a prime (442000423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543930 + ... + 544741.

It is an arithmetic number, because the mean of its divisors is an integer number (48990240).

Almost surely, 2^442000426 is an apocalyptic number.

442000426 is a deficient number, since it is larger than the sum of its proper divisors (341843414).

442000426 is a wasteful number, since it uses less digits than its factorization.

442000426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088709.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 442000426 is about 21023.8061730030. The cubic root of 442000426 is about 761.7414050315.

The spelling of 442000426 in words is "four hundred forty-two million, four hundred twenty-six", and thus it is an aban number.