428706492 has 12 divisors (see below), whose sum is σ = 1000315176. Its totient is φ = 142902160.

The previous prime is 428706451. The next prime is 428706563. The reversal of 428706492 is 294607824.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17862759 + ... + 17862782.

It is an arithmetic number, because the mean of its divisors is an integer number (83359598).

Almost surely, 2^428706492 is an apocalyptic number.

It is an amenable number.

428706492 is an abundant number, since it is smaller than the sum of its proper divisors (571608684).

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

428706492 is a wasteful number, since it uses less digits than its factorization.

428706492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35725548 (or 35725546 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 428706492 is about 20705.2286150141. The cubic root of 428706492 is about 754.0266344866.

The spelling of 428706492 in words is "four hundred twenty-eight million, seven hundred six thousand, four hundred ninety-two".