61642338 has 8 divisors (see below), whose sum is σ = 123284688. Its totient is φ = 20547444.

The previous prime is 61642331. The next prime is 61642351. The reversal of 61642338 is 83324616.

61642338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

61642338 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 61642299 and 61642308.

It is not an unprimeable number, because it can be changed into a prime (61642331) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5136856 + ... + 5136867.

It is an arithmetic number, because the mean of its divisors is an integer number (15410586).

Almost surely, 2^61642338 is an apocalyptic number.

61642338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61642338 is a wasteful number, since it uses less digits than its factorization.

61642338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10273728.

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

The square root of 61642338 is about 7851.2634652010. The cubic root of 61642338 is about 395.0266242803.

The spelling of 61642338 in words is "sixty-one million, six hundred forty-two thousand, three hundred thirty-eight".