42220352 has 14 divisors (see below), whose sum is σ = 83781138. Its totient is φ = 21110144.

The previous prime is 42220349. The next prime is 42220361. The reversal of 42220352 is 25302224.

It can be written as a sum of positive squares in only one way, i.e., 41267776 + 952576 = 6424^2 + 976^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329783 + ... + 329910.

It is an arithmetic number, because the mean of its divisors is an integer number (5984367).

Almost surely, 2^42220352 is an apocalyptic number.

It is an amenable number.

42220352 is a deficient number, since it is larger than the sum of its proper divisors (41560786).

42220352 is an equidigital number, since it uses as much as digits as its factorization.

42220352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659705 (or 659695 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42220352 is about 6497.7189843821. The cubic root of 42220352 is about 348.2095008395.

Adding to 42220352 its reverse (25302224), we get a palindrome (67522576).

The spelling of 42220352 in words is "forty-two million, two hundred twenty thousand, three hundred fifty-two".