60666240 has 128 divisors (see below), whose sum is σ = 203673600. Its totient is φ = 15316992.

The previous prime is 60666209. The next prime is 60666241. The reversal of 60666240 is 4266606.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a junction number, because it is equal to n+sod(n) for n = 60666198 and 60666207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60666241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35649 + ... + 37311.

It is an arithmetic number, because the mean of its divisors is an integer number (1591200).

Almost surely, 2^60666240 is an apocalyptic number.

60666240 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 60666240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101836800).

60666240 is an abundant number, since it is smaller than the sum of its proper divisors (143007360).

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

60666240 is a wasteful number, since it uses less digits than its factorization.

60666240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1692 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 60666240 is about 7788.8535741789. The cubic root of 60666240 is about 392.9304566521.

It can be divided in two parts, 60666 and 240, that added together give a palindrome (60906).

The spelling of 60666240 in words is "sixty million, six hundred sixty-six thousand, two hundred forty".