428802669 has 12 divisors (see below), whose sum is σ = 620714016. Its totient is φ = 285253512.

The previous prime is 428802653. The next prime is 428802749. The reversal of 428802669 is 966208824.

It is not a de Polignac number, because 428802669 - 2⁴ = 428802653 is a prime.

It is a super-2 number, since 2×428802669² = 367743457883047122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428802769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46809 + ... + 55214.

It is an arithmetic number, because the mean of its divisors is an integer number (51726168).

Almost surely, 2^428802669 is an apocalyptic number.

It is an amenable number.

428802669 is a deficient number, since it is larger than the sum of its proper divisors (191911347).

428802669 is a wasteful number, since it uses less digits than its factorization.

428802669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102496 (or 102493 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 428802669 is about 20707.5510140625. The cubic root of 428802669 is about 754.0830169600.

The spelling of 428802669 in words is "four hundred twenty-eight million, eight hundred two thousand, six hundred sixty-nine".