61308448 has 48 divisors (see below), whose sum is σ = 125356896. Its totient is φ = 29493760.

The previous prime is 61308431. The next prime is 61308461. The reversal of 61308448 is 84480316.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108615 + ... + 109177.

It is an arithmetic number, because the mean of its divisors is an integer number (2611602).

Almost surely, 2^61308448 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 61308448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62678448).

61308448 is an abundant number, since it is smaller than the sum of its proper divisors (64048448).

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

61308448 is a wasteful number, since it uses less digits than its factorization.

61308448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 61308448 is about 7829.9711366007. The cubic root of 61308448 is about 394.3121029337.

The spelling of 61308448 in words is "sixty-one million, three hundred eight thousand, four hundred forty-eight".