42226312 has 8 divisors (see below), whose sum is σ = 79174350. Its totient is φ = 21113152.

The previous prime is 42226307. The next prime is 42226397. The reversal of 42226312 is 21362224.

It can be written as a sum of positive squares in only one way, i.e., 38862756 + 3363556 = 6234^2 + 1834^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×42226312² = 3566122850242688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639137 + ... + 2639152.

Almost surely, 2^42226312 is an apocalyptic number.

It is an amenable number.

42226312 is a deficient number, since it is larger than the sum of its proper divisors (36948038).

42226312 is a wasteful number, since it uses less digits than its factorization.

42226312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5278295 (or 5278291 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 42226312 is about 6498.1775906788. The cubic root of 42226312 is about 348.2258849677.

Adding to 42226312 its reverse (21362224), we get a palindrome (63588536).

The spelling of 42226312 in words is "forty-two million, two hundred twenty-six thousand, three hundred twelve".