42343623 has 24 divisors (see below), whose sum is σ = 70118048. Its totient is φ = 24121152.

The previous prime is 42343601. The next prime is 42343627. The reversal of 42343623 is 32634324.

It is a happy number.

42343623 is a `hidden beast` number, since 4 + 2 + 34 + 3 + 623 = 666.

It is not a de Polignac number, because 42343623 - 2⁹ = 42343111 is a prime.

It is a super-2 number, since 2×42343623² = 3585964817532258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42343627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24165 + ... + 25857.

Almost surely, 2^42343623 is an apocalyptic number.

42343623 is a deficient number, since it is larger than the sum of its proper divisors (27774425).

42343623 is a wasteful number, since it uses less digits than its factorization.

42343623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2100 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 42343623 is about 6507.1977839927. The cubic root of 42343623 is about 348.5480613023.

Adding to 42343623 its reverse (32634324), we get a palindrome (74977947).

The spelling of 42343623 in words is "forty-two million, three hundred forty-three thousand, six hundred twenty-three".