428207974 has 16 divisors (see below), whose sum is σ = 671639040. Its totient is φ = 204367240.

The previous prime is 428207947. The next prime is 428208031. The reversal of 428207974 is 479702824.

It is a self number, because there is not a number n which added to its sum of digits gives 428207974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13107 + ... + 32065.

It is an arithmetic number, because the mean of its divisors is an integer number (41977440).

Almost surely, 2^428207974 is an apocalyptic number.

428207974 is a deficient number, since it is larger than the sum of its proper divisors (243431066).

428207974 is a wasteful number, since it uses less digits than its factorization.

428207974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19475.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 428207974 is about 20693.1866564819. The cubic root of 428207974 is about 753.7342497949.

The spelling of 428207974 in words is "four hundred twenty-eight million, two hundred seven thousand, nine hundred seventy-four".