42823944 has 32 divisors (see below), whose sum is σ = 118956000. Its totient is φ = 14274576.

The previous prime is 42823943. The next prime is 42823951. The reversal of 42823944 is 44932824.

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 = 42823899 and 42823908.

It is not an unprimeable number, because it can be changed into a prime (42823943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98914 + ... + 99345.

It is an arithmetic number, because the mean of its divisors is an integer number (3717375).

Almost surely, 2^42823944 is an apocalyptic number.

It is an amenable number.

42823944 is an abundant number, since it is smaller than the sum of its proper divisors (76132056).

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

42823944 is a wasteful number, since it uses less digits than its factorization.

42823944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198274 (or 198264 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 42823944 is about 6544.0006112469. Note that the first 3 decimals coincide. The cubic root of 42823944 is about 349.8610169267.

The spelling of 42823944 in words is "forty-two million, eight hundred twenty-three thousand, nine hundred forty-four".