42406485 has 32 divisors (see below), whose sum is σ = 74535552. Its totient is φ = 20417280.

The previous prime is 42406459. The next prime is 42406501. The reversal of 42406485 is 58460424.

It is not a de Polignac number, because 42406485 - 2⁸ = 42406229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 25087 + ... + 26723.

It is an arithmetic number, because the mean of its divisors is an integer number (2329236).

Almost surely, 2^42406485 is an apocalyptic number.

It is an amenable number.

42406485 is a deficient number, since it is larger than the sum of its proper divisors (32129067).

42406485 is a wasteful number, since it uses less digits than its factorization.

42406485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 42406485 is about 6512.0261823798. The cubic root of 42406485 is about 348.7204571524.

The spelling of 42406485 in words is "forty-two million, four hundred six thousand, four hundred eighty-five".