42705426 has 32 divisors (see below), whose sum is σ = 90820800. Its totient is φ = 13348800.

The previous prime is 42705419. The next prime is 42705431. The reversal of 42705426 is 62450724.

It is a junction number, because it is equal to n+sod(n) for n = 42705393 and 42705402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9660 + ... + 13368.

It is an arithmetic number, because the mean of its divisors is an integer number (2838150).

Almost surely, 2^42705426 is an apocalyptic number.

42705426 is an abundant number, since it is smaller than the sum of its proper divisors (48115374).

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

42705426 is a wasteful number, since it uses less digits than its factorization.

42705426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3834.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 42705426 is about 6534.9388673499. The cubic root of 42705426 is about 349.5379644843.

The spelling of 42705426 in words is "forty-two million, seven hundred five thousand, four hundred twenty-six".