428933270 has 8 divisors (see below), whose sum is σ = 772079904. Its totient is φ = 171573304.

The previous prime is 428933269. The next prime is 428933317. The reversal of 428933270 is 72339824.

It is a happy number.

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

It is a super-2 number, since 2×428933270² = 367967500225785800, which contains 22 as substring.

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, 21446654 + ... + 21446673.

It is an arithmetic number, because the mean of its divisors is an integer number (96509988).

Almost surely, 2^428933270 is an apocalyptic number.

428933270 is a deficient number, since it is larger than the sum of its proper divisors (343146634).

428933270 is a wasteful number, since it uses less digits than its factorization.

428933270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42893334.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 428933270 is about 20710.7042371813. The cubic root of 428933270 is about 754.1595665452.

The spelling of 428933270 in words is "four hundred twenty-eight million, nine hundred thirty-three thousand, two hundred seventy".