42823604 has 12 divisors (see below), whose sum is σ = 77525700. Its totient is φ = 20673408.

The previous prime is 42823603. The next prime is 42823619. The reversal of 42823604 is 40632824.

It can be written as a sum of positive squares in 2 ways, for example, as 17623204 + 25200400 = 4198^2 + 5020^2 .

It is a super-2 number, since 2×42823604² = 3667722119097632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42823603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184469 + ... + 184700.

It is an arithmetic number, because the mean of its divisors is an integer number (6460475).

Almost surely, 2^42823604 is an apocalyptic number.

It is an amenable number.

42823604 is a deficient number, since it is larger than the sum of its proper divisors (34702096).

42823604 is a wasteful number, since it uses less digits than its factorization.

42823604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369202 (or 369200 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 42823604 is about 6543.9746332027. The cubic root of 42823604 is about 349.8600910190.

The spelling of 42823604 in words is "forty-two million, eight hundred twenty-three thousand, six hundred four".