428499461 has 8 divisors (see below), whose sum is σ = 461637120. Its totient is φ = 395386992.

The previous prime is 428499451. The next prime is 428499473. The reversal of 428499461 is 164994824.

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

It is a de Polignac number, because none of the positive numbers 2^k-428499461 is a prime.

It is a super-2 number, since 2×428499461² = 367223576154581042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428499451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43916 + ... + 52778.

It is an arithmetic number, because the mean of its divisors is an integer number (57704640).

Almost surely, 2^428499461 is an apocalyptic number.

It is an amenable number.

428499461 is a deficient number, since it is larger than the sum of its proper divisors (33137659).

428499461 is a wasteful number, since it uses less digits than its factorization.

428499461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12595.

The product of its digits is 497664, while the sum is 47.

The square root of 428499461 is about 20700.2285253086. The cubic root of 428499461 is about 753.9052367262.

The spelling of 428499461 in words is "four hundred twenty-eight million, four hundred ninety-nine thousand, four hundred sixty-one".