64005452 has 48 divisors (see below), whose sum is σ = 139130880. Its totient is φ = 25142400.

The previous prime is 64005443. The next prime is 64005463. The reversal of 64005452 is 25450046.

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, 14552 + ... + 18432.

It is an arithmetic number, because the mean of its divisors is an integer number (2898560).

Almost surely, 2^64005452 is an apocalyptic number.

64005452 is a gapful number since it is divisible by the number (62) 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 64005452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69565440).

64005452 is an abundant number, since it is smaller than the sum of its proper divisors (75125428).

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

64005452 is a wasteful number, since it uses less digits than its factorization.

64005452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 64005452 is about 8000.3407427434. The cubic root of 64005452 is about 400.0113580108.

Adding to 64005452 its reverse (25450046), we get a palindrome (89455498).

The spelling of 64005452 in words is "sixty-four million, five thousand, four hundred fifty-two".