61405486 has 8 divisors (see below), whose sum is σ = 93405744. Its totient is φ = 30270240.

The previous prime is 61405457. The next prime is 61405493. The reversal of 61405486 is 68450416.

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, 216075 + ... + 216358.

It is an arithmetic number, because the mean of its divisors is an integer number (11675718).

Almost surely, 2^61405486 is an apocalyptic number.

61405486 is a deficient number, since it is larger than the sum of its proper divisors (32000258).

61405486 is a wasteful number, since it uses less digits than its factorization.

61405486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432506.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 61405486 is about 7836.1652611466. The cubic root of 61405486 is about 394.5200301680.

The spelling of 61405486 in words is "sixty-one million, four hundred five thousand, four hundred eighty-six".