61880320 has 48 divisors (see below), whose sum is σ = 148501080. Its totient is φ = 24748032.

The previous prime is 61880303. The next prime is 61880353. The reversal of 61880320 is 2308816.

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, 7219 + ... + 13261.

Almost surely, 2^61880320 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 61880320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74250540).

61880320 is an abundant number, since it is smaller than the sum of its proper divisors (86620760).

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

61880320 is an equidigital number, since it uses as much as digits as its factorization.

61880320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6070 (or 6050 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 61880320 is about 7866.4045154060. The cubic root of 61880320 is about 395.5343300108.

The spelling of 61880320 in words is "sixty-one million, eight hundred eighty thousand, three hundred twenty".