428075492 has 24 divisors (see below), whose sum is σ = 825523776. Its totient is φ = 192977568.

The previous prime is 428075489. The next prime is 428075507. The reversal of 428075492 is 294570824.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 93488 + ... + 97959.

It is an arithmetic number, because the mean of its divisors is an integer number (34396824).

Almost surely, 2^428075492 is an apocalyptic number.

It is an amenable number.

428075492 is a deficient number, since it is larger than the sum of its proper divisors (397448284).

428075492 is a wasteful number, since it uses less digits than its factorization.

428075492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191507 (or 191505 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 428075492 is about 20689.9853069063. The cubic root of 428075492 is about 753.6565099062.

The spelling of 428075492 in words is "four hundred twenty-eight million, seventy-five thousand, four hundred ninety-two".