428493276 has 72 divisors (see below), whose sum is σ = 1097800704. Its totient is φ = 140914080.

The previous prime is 428493269. The next prime is 428493277. The reversal of 428493276 is 672394824.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428493277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1581021 + ... + 1581291.

It is an arithmetic number, because the mean of its divisors is an integer number (15247232).

Almost surely, 2^428493276 is an apocalyptic number.

It is an amenable number.

428493276 is an abundant number, since it is smaller than the sum of its proper divisors (669307428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428493276 is a wasteful number, since it uses less digits than its factorization.

428493276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 706 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 428493276 is about 20700.0791302835. The cubic root of 428493276 is about 753.9016093966.

The spelling of 428493276 in words is "four hundred twenty-eight million, four hundred ninety-three thousand, two hundred seventy-six".