42444412 has 6 divisors (see below), whose sum is σ = 74277728. Its totient is φ = 21222204.

The previous prime is 42444403. The next prime is 42444421. The reversal of 42444412 is 21444424.

It is an interprime number because it is at equal distance from previous prime (42444403) and next prime (42444421).

It is a super-2 number, since 2×42444412² = 3603056220051488, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 5305548 + ... + 5305555.

Almost surely, 2^42444412 is an apocalyptic number.

It is an amenable number.

42444412 is a deficient number, since it is larger than the sum of its proper divisors (31833316).

42444412 is a wasteful number, since it uses less digits than its factorization.

42444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10611107 (or 10611105 counting only the distinct ones).

The product of its digits is 4096, while the sum is 25.

The square root of 42444412 is about 6514.9376052269. The cubic root of 42444412 is about 348.8243876384.

Adding to 42444412 its reverse (21444424), we get a palindrome (63888836).

The spelling of 42444412 in words is "forty-two million, four hundred forty-four thousand, four hundred twelve".