42468909 has 8 divisors (see below), whose sum is σ = 64714560. Its totient is φ = 24267936.

The previous prime is 42468893. The next prime is 42468911. The reversal of 42468909 is 90986424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42468909 - 2⁴ = 42468893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42468919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011144 + ... + 1011185.

It is an arithmetic number, because the mean of its divisors is an integer number (8089320).

Almost surely, 2^42468909 is an apocalyptic number.

It is an amenable number.

42468909 is a deficient number, since it is larger than the sum of its proper divisors (22245651).

42468909 is a wasteful number, since it uses less digits than its factorization.

42468909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022339.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 42468909 is about 6516.8173980863. The cubic root of 42468909 is about 348.8914832991.

The spelling of 42468909 in words is "forty-two million, four hundred sixty-eight thousand, nine hundred nine".