61373280 has 96 divisors (see below), whose sum is σ = 200037600. Its totient is φ = 15798272.

The previous prime is 61373261. The next prime is 61373297. The reversal of 61373280 is 8237316.

61373280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11716 + ... + 16124.

It is an arithmetic number, because the mean of its divisors is an integer number (2083725).

Almost surely, 2^61373280 is an apocalyptic number.

61373280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61373280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100018800).

61373280 is an abundant number, since it is smaller than the sum of its proper divisors (138664320).

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

61373280 is a wasteful number, since it uses less digits than its factorization.

61373280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4456 (or 4448 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 61373280 is about 7834.1100324159. The cubic root of 61373280 is about 394.4510453758.

The spelling of 61373280 in words is "sixty-one million, three hundred seventy-three thousand, two hundred eighty".