61238436 has 36 divisors (see below), whose sum is σ = 166220208. Its totient is φ = 17496528.

The previous prime is 61238417. The next prime is 61238453. The reversal of 61238436 is 63483216.

61238436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61238397 and 61238406.

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, 51486 + ... + 52661.

It is an arithmetic number, because the mean of its divisors is an integer number (4617228).

Almost surely, 2^61238436 is an apocalyptic number.

It is an amenable number.

61238436 is an abundant number, since it is smaller than the sum of its proper divisors (104981772).

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

61238436 is a wasteful number, since it uses less digits than its factorization.

61238436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104168 (or 104159 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 61238436 is about 7825.4990895150. The cubic root of 61238436 is about 394.1619491072.

The spelling of 61238436 in words is "sixty-one million, two hundred thirty-eight thousand, four hundred thirty-six".