42385356 has 120 divisors (see below), whose sum is σ = 123797520. Its totient is φ = 12555648.

The previous prime is 42385337. The next prime is 42385363. The reversal of 42385356 is 65358324.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 42385356.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 121975 + ... + 122321.

It is an arithmetic number, because the mean of its divisors is an integer number (1031646).

Almost surely, 2^42385356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42385356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61898760).

42385356 is an abundant number, since it is smaller than the sum of its proper divisors (81412164).

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

42385356 is a wasteful number, since it uses less digits than its factorization.

42385356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 394 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 42385356 is about 6510.4036741204. The cubic root of 42385356 is about 348.6625309603.

The spelling of 42385356 in words is "forty-two million, three hundred eighty-five thousand, three hundred fifty-six".