61285390 has 8 divisors (see below), whose sum is σ = 110313720. Its totient is φ = 24514152.

The previous prime is 61285379. The next prime is 61285417. The reversal of 61285390 is 9358216.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3064260 + ... + 3064279.

It is an arithmetic number, because the mean of its divisors is an integer number (13789215).

Almost surely, 2^61285390 is an apocalyptic number.

61285390 is a deficient number, since it is larger than the sum of its proper divisors (49028330).

61285390 is a wasteful number, since it uses less digits than its factorization.

61285390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6128546.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 61285390 is about 7828.4985789103. The cubic root of 61285390 is about 394.2626633712.

The spelling of 61285390 in words is "sixty-one million, two hundred eighty-five thousand, three hundred ninety".