442223750 has 40 divisors (see below), whose sum is σ = 832514760. Its totient is φ = 176120000.

The previous prime is 442223729. The next prime is 442223797. The reversal of 442223750 is 57322244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 350621 + ... + 351879.

It is an arithmetic number, because the mean of its divisors is an integer number (20812869).

Almost surely, 2^442223750 is an apocalyptic number.

442223750 is a deficient number, since it is larger than the sum of its proper divisors (390291010).

442223750 is a wasteful number, since it uses less digits than its factorization.

442223750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562 (or 1547 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 442223750 is about 21029.1167194440. The cubic root of 442223750 is about 761.8696752661.

Adding to 442223750 its reverse (57322244), we get a palindrome (499545994).

The spelling of 442223750 in words is "four hundred forty-two million, two hundred twenty-three thousand, seven hundred fifty".