428306692 has 12 divisors (see below), whose sum is σ = 817676496. Its totient is φ = 194684840.

The previous prime is 428306689. The next prime is 428306693. The reversal of 428306692 is 296603824.

It is not an unprimeable number, because it can be changed into a prime (428306693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4867078 + ... + 4867165.

It is an arithmetic number, because the mean of its divisors is an integer number (68139708).

Almost surely, 2^428306692 is an apocalyptic number.

It is an amenable number.

428306692 is a deficient number, since it is larger than the sum of its proper divisors (389369804).

428306692 is a wasteful number, since it uses less digits than its factorization.

428306692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9734258 (or 9734256 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 428306692 is about 20695.5717968845. The cubic root of 428306692 is about 753.7921666834.

The spelling of 428306692 in words is "four hundred twenty-eight million, three hundred six thousand, six hundred ninety-two".