42444082 has 4 divisors (see below), whose sum is σ = 63666126. Its totient is φ = 21222040.

The previous prime is 42444079. The next prime is 42444097. The reversal of 42444082 is 28044424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37687321 + 4756761 = 6139^2 + 2181^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42444082.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611019 + ... + 10611022.

Almost surely, 2^42444082 is an apocalyptic number.

42444082 is a deficient number, since it is larger than the sum of its proper divisors (21222044).

42444082 is a wasteful number, since it uses less digits than its factorization.

42444082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21222043.

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 42444082 is about 6514.9122787648. The cubic root of 42444082 is about 348.8234836141.

The spelling of 42444082 in words is "forty-two million, four hundred forty-four thousand, eighty-two".