428543630 has 8 divisors (see below), whose sum is σ = 771378552. Its totient is φ = 171417448.

The previous prime is 428543629. The next prime is 428543671. The reversal of 428543630 is 36345824.

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

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, 21427172 + ... + 21427191.

It is an arithmetic number, because the mean of its divisors is an integer number (96422319).

Almost surely, 2^428543630 is an apocalyptic number.

428543630 is a deficient number, since it is larger than the sum of its proper divisors (342834922).

428543630 is a wasteful number, since it uses less digits than its factorization.

428543630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42854370.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 428543630 is about 20701.2953700970. The cubic root of 428543630 is about 753.9311395953.

The spelling of 428543630 in words is "four hundred twenty-eight million, five hundred forty-three thousand, six hundred thirty".