42126622 has 4 divisors (see below), whose sum is σ = 63189936. Its totient is φ = 21063310.

The previous prime is 42126619. The next prime is 42126631. The reversal of 42126622 is 22662124.

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

It is a super-2 number, since 2×42126622² = 3549304562261768, which contains 22 as substring.

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, 10531654 + ... + 10531657.

It is an arithmetic number, because the mean of its divisors is an integer number (15797484).

Almost surely, 2^42126622 is an apocalyptic number.

42126622 is a deficient number, since it is larger than the sum of its proper divisors (21063314).

42126622 is a wasteful number, since it uses less digits than its factorization.

42126622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21063313.

The product of its digits is 2304, while the sum is 25.

The square root of 42126622 is about 6490.5024458820. The cubic root of 42126622 is about 347.9516326402.

Adding to 42126622 its reverse (22662124), we get a palindrome (64788746).

The spelling of 42126622 in words is "forty-two million, one hundred twenty-six thousand, six hundred twenty-two".