61304304 has 40 divisors (see below), whose sum is σ = 161061120. Its totient is φ = 20087488.

The previous prime is 61304303. The next prime is 61304333. The reversal of 61304304 is 40340316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61304303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7992 + ... + 13655.

It is an arithmetic number, because the mean of its divisors is an integer number (4026528).

Almost surely, 2^61304304 is an apocalyptic number.

It is an amenable number.

61304304 is an abundant number, since it is smaller than the sum of its proper divisors (99756816).

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

61304304 is a wasteful number, since it uses less digits than its factorization.

61304304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21717 (or 21711 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 61304304 is about 7829.7065079095. The cubic root of 61304304 is about 394.3032185346.

The spelling of 61304304 in words is "sixty-one million, three hundred four thousand, three hundred four".