61845336 has 64 divisors (see below), whose sum is σ = 196339200. Its totient is φ = 17669664.

The previous prime is 61845293. The next prime is 61845349. The reversal of 61845336 is 63354816.

61845336 is a `hidden beast` number, since 618 + 4 + 5 + 3 + 36 = 666.

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 61845336.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18940 + ... + 21963.

It is an arithmetic number, because the mean of its divisors is an integer number (3067800).

Almost surely, 2^61845336 is an apocalyptic number.

It is an amenable number.

61845336 is an abundant number, since it is smaller than the sum of its proper divisors (134493864).

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

61845336 is a wasteful number, since it uses less digits than its factorization.

61845336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40925 (or 40915 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 61845336 is about 7864.1805676116. The cubic root of 61845336 is about 395.4597775981.

It can be divided in two parts, 618 and 45336, that added together give a palindrome (45954).

The spelling of 61845336 in words is "sixty-one million, eight hundred forty-five thousand, three hundred thirty-six".