42418905 has 8 divisors (see below), whose sum is σ = 67870272. Its totient is φ = 22623408.

The previous prime is 42418903. The next prime is 42418919. The reversal of 42418905 is 50981424.

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

It is not a de Polignac number, because 42418905 - 2¹ = 42418903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42418903) 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, 1413949 + ... + 1413978.

It is an arithmetic number, because the mean of its divisors is an integer number (8483784).

Almost surely, 2^42418905 is an apocalyptic number.

It is an amenable number.

42418905 is a deficient number, since it is larger than the sum of its proper divisors (25451367).

42418905 is a wasteful number, since it uses less digits than its factorization.

42418905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827935.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 42418905 is about 6512.9797328105. The cubic root of 42418905 is about 348.7544982141.

The spelling of 42418905 in words is "forty-two million, four hundred eighteen thousand, nine hundred five".