61404594 has 8 divisors (see below), whose sum is σ = 122809200. Its totient is φ = 20468196.

The previous prime is 61404569. The next prime is 61404617. The reversal of 61404594 is 49540416.

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

61404594 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon 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, 5117044 + ... + 5117055.

It is an arithmetic number, because the mean of its divisors is an integer number (15351150).

Almost surely, 2^61404594 is an apocalyptic number.

61404594 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.

61404594 is a wasteful number, since it uses less digits than its factorization.

61404594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10234104.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 61404594 is about 7836.1083453459. The cubic root of 61404594 is about 394.5181198416.

The spelling of 61404594 in words is "sixty-one million, four hundred four thousand, five hundred ninety-four".