42436944 has 120 divisors (see below), whose sum is σ = 131693952. Its totient is φ = 12648960.

The previous prime is 42436939. The next prime is 42436951. The reversal of 42436944 is 44963424.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 42436899 and 42436908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115449 + ... + 115815.

Almost surely, 2^42436944 is an apocalyptic number.

42436944 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42436944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65846976).

42436944 is an abundant number, since it is smaller than the sum of its proper divisors (89257008).

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

42436944 is a wasteful number, since it uses less digits than its factorization.

42436944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 456 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 42436944 is about 6514.3644356146. The cubic root of 42436944 is about 348.8039281464.

The spelling of 42436944 in words is "forty-two million, four hundred thirty-six thousand, nine hundred forty-four".