60866388 has 108 divisors (see below), whose sum is σ = 172104660. Its totient is φ = 18120960.

The previous prime is 60866381. The next prime is 60866413. The reversal of 60866388 is 88366806.

60866388 is a `hidden beast` number, since 6 + 0 + 8 + 6 + 638 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14653584 + 46212804 = 3828^2 + 6798^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60866381) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 387606 + ... + 387762.

Almost surely, 2^60866388 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 60866388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86052330).

60866388 is an abundant number, since it is smaller than the sum of its proper divisors (111238272).

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

60866388 is a wasteful number, since it uses less digits than its factorization.

60866388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 60866388 is about 7801.6913550845. The cubic root of 60866388 is about 393.3620965911.

The spelling of 60866388 in words is "sixty million, eight hundred sixty-six thousand, three hundred eighty-eight".