42223340 has 12 divisors (see below), whose sum is σ = 88669056. Its totient is φ = 16889328.

The previous prime is 42223303. The next prime is 42223361. The reversal of 42223340 is 4332224.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2111167 = 42223340 / (4 + 2 + 2 + 2 + 3 + 3 + 4 + 0).

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 in 3 ways as a sum of consecutive naturals, for example, 1055564 + ... + 1055603.

It is an arithmetic number, because the mean of its divisors is an integer number (7389088).

Almost surely, 2^42223340 is an apocalyptic number.

It is an amenable number.

42223340 is an abundant number, since it is smaller than the sum of its proper divisors (46445716).

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

42223340 is a wasteful number, since it uses less digits than its factorization.

42223340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111176 (or 2111174 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 42223340 is about 6497.9489071552. The cubic root of 42223340 is about 348.2177150885.

Adding to 42223340 its reverse (4332224), we get a palindrome (46555564).

The spelling of 42223340 in words is "forty-two million, two hundred twenty-three thousand, three hundred forty".