61304478 has 16 divisors (see below), whose sum is σ = 122839680. Its totient is φ = 20396376.

The previous prime is 61304459. The next prime is 61304489. The reversal of 61304478 is 87440316.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6058 + ... + 12621.

It is an arithmetic number, because the mean of its divisors is an integer number (7677480).

Almost surely, 2^61304478 is an apocalyptic number.

61304478 is an abundant number, since it is smaller than the sum of its proper divisors (61535202).

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

61304478 is a wasteful number, since it uses less digits than its factorization.

61304478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19231.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 61304478 is about 7829.7176194292. The cubic root of 61304478 is about 394.3035915845.

The spelling of 61304478 in words is "sixty-one million, three hundred four thousand, four hundred seventy-eight".