64574000 has 80 divisors (see below), whose sum is σ = 158427360. Its totient is φ = 25452800.

The previous prime is 64573933. The next prime is 64574011. The reversal of 64574000 is 47546.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165806 + ... + 166194.

It is an arithmetic number, because the mean of its divisors is an integer number (1980342).

Almost surely, 2^64574000 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 64574000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79213680).

64574000 is an abundant number, since it is smaller than the sum of its proper divisors (93853360).

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

64574000 is a wasteful number, since it uses less digits than its factorization.

64574000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 64574000 is about 8035.7949202304. The cubic root of 64574000 is about 401.1922759973.

The spelling of 64574000 in words is "sixty-four million, five hundred seventy-four thousand".