428250478 has 8 divisors (see below), whose sum is σ = 670305168. Its totient is φ = 204815424.

The previous prime is 428250437. The next prime is 428250509. The reversal of 428250478 is 874052824.

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

It is a self number, because there is not a number n which added to its sum of digits gives 428250478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4654851 + ... + 4654942.

It is an arithmetic number, because the mean of its divisors is an integer number (83788146).

Almost surely, 2^428250478 is an apocalyptic number.

428250478 is a deficient number, since it is larger than the sum of its proper divisors (242054690).

428250478 is a wasteful number, since it uses less digits than its factorization.

428250478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9309818.

The product of its (nonzero) digits is 143360, while the sum is 40.

The square root of 428250478 is about 20694.2136357002. The cubic root of 428250478 is about 753.7591875686.

The spelling of 428250478 in words is "four hundred twenty-eight million, two hundred fifty thousand, four hundred seventy-eight".