42609066 has 16 divisors (see below), whose sum is σ = 87967488. Its totient is φ = 13744800.

The previous prime is 42609053. The next prime is 42609101. The reversal of 42609066 is 66090624.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114355 + ... + 114726.

It is an arithmetic number, because the mean of its divisors is an integer number (5497968).

Almost surely, 2^42609066 is an apocalyptic number.

42609066 is an abundant number, since it is smaller than the sum of its proper divisors (45358422).

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

42609066 is a wasteful number, since it uses less digits than its factorization.

42609066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229117.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 42609066 is about 6527.5620257490. The cubic root of 42609066 is about 349.2748687761.

The spelling of 42609066 in words is "forty-two million, six hundred nine thousand, sixty-six".