42321436 has 12 divisors (see below), whose sum is σ = 77960680. Its totient is φ = 20046960.

The previous prime is 42321427. The next prime is 42321439. The reversal of 42321436 is 63412324.

It is a super-2 number, since 2×42321436² = 3582207890204192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42321436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321439) by changing a digit.

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, 278355 + ... + 278506.

Almost surely, 2^42321436 is an apocalyptic number.

It is an amenable number.

42321436 is a deficient number, since it is larger than the sum of its proper divisors (35639244).

42321436 is a wasteful number, since it uses less digits than its factorization.

42321436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556884 (or 556882 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 42321436 is about 6505.4927561254. The cubic root of 42321436 is about 348.4871738427.

The spelling of 42321436 in words is "forty-two million, three hundred twenty-one thousand, four hundred thirty-six".