442045124 has 6 divisors (see below), whose sum is σ = 773578974. Its totient is φ = 221022560.

The previous prime is 442045103. The next prime is 442045129. The reversal of 442045124 is 421540244.

It can be written as a sum of positive squares in only one way, i.e., 434305600 + 7739524 = 20840^2 + 2782^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442045093 and 442045102.

It is not an unprimeable number, because it can be changed into a prime (442045129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55255637 + ... + 55255644.

It is an arithmetic number, because the mean of its divisors is an integer number (128929829).

Almost surely, 2^442045124 is an apocalyptic number.

It is an amenable number.

442045124 is a deficient number, since it is larger than the sum of its proper divisors (331533850).

442045124 is a wasteful number, since it uses less digits than its factorization.

442045124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110511285 (or 110511283 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 442045124 is about 21024.8691791412. The cubic root of 442045124 is about 761.7670816053.

Adding to 442045124 its product of nonzero digits (5120), we get a palindrome (442050244).

Adding to 442045124 its reverse (421540244), we get a palindrome (863585368).

The spelling of 442045124 in words is "four hundred forty-two million, forty-five thousand, one hundred twenty-four".