61304364 has 120 divisors (see below), whose sum is σ = 177585408. Its totient is φ = 18286560.

The previous prime is 61304359. The next prime is 61304371. The reversal of 61304364 is 46340316.

61304364 is a `hidden beast` number, since 613 + 0 + 43 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 367009 + ... + 367175.

Almost surely, 2^61304364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61304364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88792704).

61304364 is an abundant number, since it is smaller than the sum of its proper divisors (116281044).

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

61304364 is a wasteful number, since it uses less digits than its factorization.

61304364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 61304364 is about 7829.7103394698. The cubic root of 61304364 is about 394.3033471725.

The spelling of 61304364 in words is "sixty-one million, three hundred four thousand, three hundred sixty-four".