64240535 has 8 divisors (see below), whose sum is σ = 81623376. Its totient is φ = 48369280.

The previous prime is 64240529. The next prime is 64240549. The reversal of 64240535 is 53504246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64240535 - 2¹⁴ = 64224151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64240498 and 64240507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377801 + ... + 377970.

It is an arithmetic number, because the mean of its divisors is an integer number (10202922).

Almost surely, 2^64240535 is an apocalyptic number.

64240535 is a deficient number, since it is larger than the sum of its proper divisors (17382841).

64240535 is a wasteful number, since it uses less digits than its factorization.

64240535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755793.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 64240535 is about 8015.0193387165. The cubic root of 64240535 is about 400.5004881013.

The spelling of 64240535 in words is "sixty-four million, two hundred forty thousand, five hundred thirty-five".