64740600 has 192 divisors, whose sum is σ = 235104000. Its totient is φ = 16329600.

The previous prime is 64740587. The next prime is 64740629. The reversal of 64740600 is 604746.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102285 + ... + 102915.

It is an arithmetic number, because the mean of its divisors is an integer number (1224500).

Almost surely, 2^64740600 is an apocalyptic number.

64740600 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 64740600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117552000).

64740600 is an abundant number, since it is smaller than the sum of its proper divisors (170363400).

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

64740600 is a wasteful number, since it uses less digits than its factorization.

64740600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 64740600 is about 8046.1543609354. The cubic root of 64740600 is about 401.5370031554.

The spelling of 64740600 in words is "sixty-four million, seven hundred forty thousand, six hundred".