42223502 has 4 divisors (see below), whose sum is σ = 63335256. Its totient is φ = 21111750.

The previous prime is 42223429. The next prime is 42223513. The reversal of 42223502 is 20532224.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×42223502² = 3565648242288008, 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 (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555874 + ... + 10555877.

It is an arithmetic number, because the mean of its divisors is an integer number (15833814).

Almost surely, 2^42223502 is an apocalyptic number.

42223502 is a deficient number, since it is larger than the sum of its proper divisors (21111754).

42223502 is a wasteful number, since it uses less digits than its factorization.

42223502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21111753.

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

The square root of 42223502 is about 6497.9613726153. The cubic root of 42223502 is about 348.2181604283.

Adding to 42223502 its reverse (20532224), we get a palindrome (62755726).

The spelling of 42223502 in words is "forty-two million, two hundred twenty-three thousand, five hundred two".