42685403 has 8 divisors (see below), whose sum is σ = 43241472. Its totient is φ = 42132456.

The previous prime is 42685337. The next prime is 42685417. The reversal of 42685403 is 30458624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42685403 is a prime.

It is a super-3 number, since 3×42685403³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42685403.

It is not an unprimeable number, because it can be changed into a prime (42685483) 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, 38726 + ... + 39812.

It is an arithmetic number, because the mean of its divisors is an integer number (5405184).

Almost surely, 2^42685403 is an apocalyptic number.

42685403 is a deficient number, since it is larger than the sum of its proper divisors (556069).

42685403 is a wasteful number, since it uses less digits than its factorization.

42685403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 42685403 is about 6533.4066917650. The cubic root of 42685403 is about 349.4833274555.

The spelling of 42685403 in words is "forty-two million, six hundred eighty-five thousand, four hundred three".