428716236 has 48 divisors (see below), whose sum is σ = 1112050688. Its totient is φ = 127656000.

The previous prime is 428716229. The next prime is 428716271. The reversal of 428716236 is 632617824.

It is a happy number.

It is a super-2 number, since 2×428716236² = 367595222020015392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 428716194 and 428716203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39490 + ... + 49161.

Almost surely, 2^428716236 is an apocalyptic number.

It is an amenable number.

428716236 is an abundant number, since it is smaller than the sum of its proper divisors (683334452).

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

428716236 is a wasteful number, since it uses less digits than its factorization.

428716236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88702 (or 88700 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 428716236 is about 20705.4639165608. The cubic root of 428716236 is about 754.0323471595.

The spelling of 428716236 in words is "four hundred twenty-eight million, seven hundred sixteen thousand, two hundred thirty-six".