442159240 has 16 divisors (see below), whose sum is σ = 994858380. Its totient is φ = 176863680.

The previous prime is 442159229. The next prime is 442159247. The reversal of 442159240 is 42951244.

It can be written as a sum of positive squares in 2 ways, for example, as 442092676 + 66564 = 21026^2 + 258^2 .

It is not an unprimeable number, because it can be changed into a prime (442159247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5526951 + ... + 5527030.

Almost surely, 2^442159240 is an apocalyptic number.

442159240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442159240 is an abundant number, since it is smaller than the sum of its proper divisors (552699140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442159240 is a wasteful number, since it uses less digits than its factorization.

442159240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11053992 (or 11053988 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 442159240 is about 21027.5828377871. The cubic root of 442159240 is about 761.8326272010.

The spelling of 442159240 in words is "four hundred forty-two million, one hundred fifty-nine thousand, two hundred forty".