64788360 has 256 divisors, whose sum is σ = 254016000. Its totient is φ = 12828672.

The previous prime is 64788341. The next prime is 64788379. The reversal of 64788360 is 6388746.

It is an interprime number because it is at equal distance from previous prime (64788341) and next prime (64788379).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 185466 + ... + 185814.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^64788360 is an apocalyptic number.

64788360 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 64788360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127008000).

64788360 is an abundant number, since it is smaller than the sum of its proper divisors (189227640).

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

64788360 is a wasteful number, since it uses less digits than its factorization.

64788360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 64788360 is about 8049.1216912158. The cubic root of 64788360 is about 401.6357186106.

The spelling of 64788360 in words is "sixty-four million, seven hundred eighty-eight thousand, three hundred sixty".