64360506 has 64 divisors (see below), whose sum is σ = 151289856. Its totient is φ = 17875200.

The previous prime is 64360493. The next prime is 64360537. The reversal of 64360506 is 60506346.

It is a super-3 number, since 3×64360506³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336871 + ... + 337061.

It is an arithmetic number, because the mean of its divisors is an integer number (2363904).

Almost surely, 2^64360506 is an apocalyptic number.

It is a pronic number, being equal to 8022×8023.

It is a practical number, because each smaller number is the sum of distinct divisors of 64360506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75644928).

64360506 is an abundant number, since it is smaller than the sum of its proper divisors (86929350).

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

64360506 is a wasteful number, since it uses less digits than its factorization.

64360506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 64360506 is about 8022.4999844188. The cubic root of 64360506 is about 400.7496483573.

The spelling of 64360506 in words is "sixty-four million, three hundred sixty thousand, five hundred six".