442251412 has 12 divisors (see below), whose sum is σ = 774112500. Its totient is φ = 221076416.

The previous prime is 442251373. The next prime is 442251443. The reversal of 442251412 is 214152244.

It can be written as a sum of positive squares in 2 ways, for example, as 353966596 + 88284816 = 18814^2 + 9396^2 .

It is a super-2 number, since 2×442251412² = 391172622831987488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14214 + ... + 32962.

It is an arithmetic number, because the mean of its divisors is an integer number (64509375).

Almost surely, 2^442251412 is an apocalyptic number.

It is an amenable number.

442251412 is a deficient number, since it is larger than the sum of its proper divisors (331861088).

442251412 is a wasteful number, since it uses less digits than its factorization.

442251412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24650 (or 24648 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 442251412 is about 21029.7744162889. The cubic root of 442251412 is about 761.8855604370.

The spelling of 442251412 in words is "four hundred forty-two million, two hundred fifty-one thousand, four hundred twelve".