428395461 has 16 divisors (see below), whose sum is σ = 651317184. Its totient is φ = 248120064.

The previous prime is 428395423. The next prime is 428395481. The reversal of 428395461 is 164593824.

It is not a de Polignac number, because 428395461 - 2²² = 424201157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428395481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322411 + ... + 323736.

It is an arithmetic number, because the mean of its divisors is an integer number (40707324).

Almost surely, 2^428395461 is an apocalyptic number.

It is an amenable number.

428395461 is a deficient number, since it is larger than the sum of its proper divisors (222921723).

428395461 is a wasteful number, since it uses less digits than its factorization.

428395461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646180.

The product of its digits is 207360, while the sum is 42.

The square root of 428395461 is about 20697.7163233048. The cubic root of 428395461 is about 753.8442389920.

The spelling of 428395461 in words is "four hundred twenty-eight million, three hundred ninety-five thousand, four hundred sixty-one".