442120012 has 24 divisors (see below), whose sum is σ = 780870272. Its totient is φ = 219024000.

The previous prime is 442119991. The next prime is 442120087. The reversal of 442120012 is 210021244.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225637 + ... + 227587.

Almost surely, 2^442120012 is an apocalyptic number.

It is an amenable number.

442120012 is a deficient number, since it is larger than the sum of its proper divisors (338750260).

442120012 is a wasteful number, since it uses less digits than its factorization.

442120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449 (or 2447 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 442120012 is about 21026.6500422678. The cubic root of 442120012 is about 761.8100968157.

Adding to 442120012 its reverse (210021244), we get a palindrome (652141256).

The spelling of 442120012 in words is "four hundred forty-two million, one hundred twenty thousand, twelve".