428310636 has 24 divisors (see below), whose sum is σ = 1076268144. Its totient is φ = 131787840.

The previous prime is 428310613. The next prime is 428310643. The reversal of 428310636 is 636013824.

It is a junction number, because it is equal to n+sod(n) for n = 428310597 and 428310606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372635 + ... + 1372946.

It is an arithmetic number, because the mean of its divisors is an integer number (44844506).

Almost surely, 2^428310636 is an apocalyptic number.

It is an amenable number.

428310636 is an abundant number, since it is smaller than the sum of its proper divisors (647957508).

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

428310636 is a wasteful number, since it uses less digits than its factorization.

428310636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745601 (or 2745599 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 428310636 is about 20695.6670827495. The cubic root of 428310636 is about 753.7944804049.

The spelling of 428310636 in words is "four hundred twenty-eight million, three hundred ten thousand, six hundred thirty-six".