428658267 has 16 divisors (see below), whose sum is σ = 575955072. Its totient is φ = 283576320.

The previous prime is 428658253. The next prime is 428658277. The reversal of 428658267 is 762856824.

It is a de Polignac number, because none of the positive numbers 2^k-428658267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428658227) 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, 235792 + ... + 237602.

It is an arithmetic number, because the mean of its divisors is an integer number (35997192).

Almost surely, 2^428658267 is an apocalyptic number.

428658267 is a deficient number, since it is larger than the sum of its proper divisors (147296805).

428658267 is a wasteful number, since it uses less digits than its factorization.

428658267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378.

The product of its digits is 1290240, while the sum is 48.

The square root of 428658267 is about 20704.0640213461. The cubic root of 428658267 is about 753.9983600543.

The spelling of 428658267 in words is "four hundred twenty-eight million, six hundred fifty-eight thousand, two hundred sixty-seven".