442213490 has 8 divisors (see below), whose sum is σ = 795984300. Its totient is φ = 176885392.

The previous prime is 442213483. The next prime is 442213493. The reversal of 442213490 is 94312244.

It can be written as a sum of positive squares in 2 ways, for example, as 386397649 + 55815841 = 19657^2 + 7471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (442213493) 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, 22110665 + ... + 22110684.

Almost surely, 2^442213490 is an apocalyptic number.

442213490 is a deficient number, since it is larger than the sum of its proper divisors (353770810).

442213490 is a wasteful number, since it uses less digits than its factorization.

442213490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44221356.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 442213490 is about 21028.8727705505. The cubic root of 442213490 is about 761.8637831935.

The spelling of 442213490 in words is "four hundred forty-two million, two hundred thirteen thousand, four hundred ninety".