42345826 has 4 divisors (see below), whose sum is σ = 63518742. Its totient is φ = 21172912.

The previous prime is 42345803. The next prime is 42345839. The reversal of 42345826 is 62854324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42185025 + 160801 = 6495^2 + 401^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42345791 and 42345800.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10586455 + ... + 10586458.

Almost surely, 2^42345826 is an apocalyptic number.

42345826 is a deficient number, since it is larger than the sum of its proper divisors (21172916).

42345826 is a wasteful number, since it uses less digits than its factorization.

42345826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21172915.

The product of its digits is 46080, while the sum is 34.

The square root of 42345826 is about 6507.3670558837. The cubic root of 42345826 is about 348.5541058021.

The spelling of 42345826 in words is "forty-two million, three hundred forty-five thousand, eight hundred twenty-six".