61285388 has 12 divisors (see below), whose sum is σ = 110709312. Its totient is φ = 29654160.

The previous prime is 61285379. The next prime is 61285417. The reversal of 61285388 is 88358216.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246995 + ... + 247242.

It is an arithmetic number, because the mean of its divisors is an integer number (9225776).

Almost surely, 2^61285388 is an apocalyptic number.

It is an amenable number.

61285388 is a deficient number, since it is larger than the sum of its proper divisors (49423924).

61285388 is a wasteful number, since it uses less digits than its factorization.

61285388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494272 (or 494270 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 61285388 is about 7828.4984511718. The cubic root of 61285388 is about 394.2626590824.

The spelling of 61285388 in words is "sixty-one million, two hundred eighty-five thousand, three hundred eighty-eight".