42635406 has 32 divisors (see below), whose sum is σ = 94608000. Its totient is φ = 12699680.

The previous prime is 42635393. The next prime is 42635407. The reversal of 42635406 is 60453624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42635407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1581 + ... + 9368.

It is an arithmetic number, because the mean of its divisors is an integer number (2956500).

Almost surely, 2^42635406 is an apocalyptic number.

42635406 is an abundant number, since it is smaller than the sum of its proper divisors (51972594).

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

42635406 is a wasteful number, since it uses less digits than its factorization.

42635406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11024.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 42635406 is about 6529.5793126357. The cubic root of 42635406 is about 349.3468253324.

It can be divided in two parts, 4263 and 5406, that added together give a palindrome (9669).

The spelling of 42635406 in words is "forty-two million, six hundred thirty-five thousand, four hundred six".