42930026 has 4 divisors (see below), whose sum is σ = 64395042. Its totient is φ = 21465012.

The previous prime is 42930001. The next prime is 42930047. The reversal of 42930026 is 62003924.

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., 21631801 + 21298225 = 4651^2 + 4615^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42929977 and 42930004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10732505 + ... + 10732508.

Almost surely, 2^42930026 is an apocalyptic number.

42930026 is a deficient number, since it is larger than the sum of its proper divisors (21465016).

42930026 is a wasteful number, since it uses less digits than its factorization.

42930026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21465015.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 42930026 is about 6552.1008844492. The cubic root of 42930026 is about 350.1496666029.

The spelling of 42930026 in words is "forty-two million, nine hundred thirty thousand, twenty-six".