60780720 has 480 divisors, whose sum is σ = 265982976. Its totient is φ = 11151360.

The previous prime is 60780719. The next prime is 60780761. The reversal of 60780720 is 2708706.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2642629 + ... + 2642651.

Almost surely, 2^60780720 is an apocalyptic number.

60780720 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 60780720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132991488).

60780720 is an abundant number, since it is smaller than the sum of its proper divisors (205202256).

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

60780720 is a wasteful number, since it uses less digits than its factorization.

60780720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 60780720 is about 7796.1990739077. The cubic root of 60780720 is about 393.1774606612.

The spelling of 60780720 in words is "sixty million, seven hundred eighty thousand, seven hundred twenty".