64258420 has 24 divisors (see below), whose sum is σ = 135299304. Its totient is φ = 25635456.

The previous prime is 64258417. The next prime is 64258421. The reversal of 64258420 is 2485246.

It can be written as a sum of positive squares in 4 ways, for example, as 8726116 + 55532304 = 2954^2 + 7452^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64258421) 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, 3894 + ... + 11986.

It is an arithmetic number, because the mean of its divisors is an integer number (5637471).

Almost surely, 2^64258420 is an apocalyptic number.

It is an amenable number.

64258420 is an abundant number, since it is smaller than the sum of its proper divisors (71040884).

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

64258420 is a wasteful number, since it uses less digits than its factorization.

64258420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8499 (or 8497 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 64258420 is about 8016.1349789035. The cubic root of 64258420 is about 400.5376520020.

The spelling of 64258420 in words is "sixty-four million, two hundred fifty-eight thousand, four hundred twenty".