42455736 has 48 divisors (see below), whose sum is σ = 116188800. Its totient is φ = 14003712.

The previous prime is 42455729. The next prime is 42455741. The reversal of 42455736 is 63755424.

42455736 is a `hidden beast` number, since 42 + 45 + 573 + 6 = 666.

42455736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42455736.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3945 + ... + 10023.

It is an arithmetic number, because the mean of its divisors is an integer number (2420600).

Almost surely, 2^42455736 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 42455736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58094400).

42455736 is an abundant number, since it is smaller than the sum of its proper divisors (73733064).

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

42455736 is a wasteful number, since it uses less digits than its factorization.

42455736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6188 (or 6181 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 42455736 is about 6515.8066269649. The cubic root of 42455736 is about 348.8554065323.

The spelling of 42455736 in words is "forty-two million, four hundred fifty-five thousand, seven hundred thirty-six".