61888284 has 72 divisors (see below), whose sum is σ = 162140160. Its totient is φ = 19891872.

The previous prime is 61888273. The next prime is 61888289. The reversal of 61888284 is 48288816.

It is a happy number.

61888284 is a `hidden beast` number, since 618 + 8 + 8 + 28 + 4 = 666.

61888284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61888289) 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 23 ways as a sum of consecutive naturals, for example, 133437 + ... + 133899.

Almost surely, 2^61888284 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 61888284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81070080).

61888284 is an abundant number, since it is smaller than the sum of its proper divisors (100251876).

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

61888284 is a wasteful number, since it uses less digits than its factorization.

61888284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 594 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 61888284 is about 7866.9107024295. The cubic root of 61888284 is about 395.5512977117.

The spelling of 61888284 in words is "sixty-one million, eight hundred eighty-eight thousand, two hundred eighty-four".