61242236 has 48 divisors (see below), whose sum is σ = 122895360. Its totient is φ = 26448000.

The previous prime is 61242227. The next prime is 61242239. The reversal of 61242236 is 63224216.

It is a super-2 number, since 2×61242236² = 7501222940559392, which contains 22 as substring.

Its product of digits (3456) is a multiple of the sum of its prime divisors (864).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61242239) by changing a digit.

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, 80096 + ... + 80856.

It is an arithmetic number, because the mean of its divisors is an integer number (2560320).

Almost surely, 2^61242236 is an apocalyptic number.

It is an amenable number.

61242236 is an abundant number, since it is smaller than the sum of its proper divisors (61653124).

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

61242236 is a wasteful number, since it uses less digits than its factorization.

61242236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 864 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 61242236 is about 7825.7418817643. The cubic root of 61242236 is about 394.1701018542.

The spelling of 61242236 in words is "sixty-one million, two hundred forty-two thousand, two hundred thirty-six".