42809466 has 16 divisors (see below), whose sum is σ = 97850304. Its totient is φ = 12231264.

The previous prime is 42809363. The next prime is 42809471. The reversal of 42809466 is 66490824.

42809466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509595 + ... + 509678.

It is an arithmetic number, because the mean of its divisors is an integer number (6115644).

Almost surely, 2^42809466 is an apocalyptic number.

42809466 is an abundant number, since it is smaller than the sum of its proper divisors (55040838).

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

42809466 is a wasteful number, since it uses less digits than its factorization.

42809466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019285.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 42809466 is about 6542.8943136811. The cubic root of 42809466 is about 349.8215852579.

The spelling of 42809466 in words is "forty-two million, eight hundred nine thousand, four hundred sixty-six".