64024405 has 8 divisors (see below), whose sum is σ = 77590584. Its totient is φ = 50712000.

The previous prime is 64024403. The next prime is 64024427. The reversal of 64024405 is 50442046.

It can be written as a sum of positive squares in 4 ways, for example, as 15944049 + 48080356 = 3993^2 + 6934^2 .

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

It is not a de Polignac number, because 64024405 - 2¹ = 64024403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64024405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64024403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62886 + ... + 63895.

It is an arithmetic number, because the mean of its divisors is an integer number (9698823).

Almost surely, 2^64024405 is an apocalyptic number.

It is an amenable number.

64024405 is a deficient number, since it is larger than the sum of its proper divisors (13566179).

64024405 is a wasteful number, since it uses less digits than its factorization.

64024405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126887.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 64024405 is about 8001.5251671166. The cubic root of 64024405 is about 400.0508372887.

The spelling of 64024405 in words is "sixty-four million, twenty-four thousand, four hundred five".