428646942 has 24 divisors (see below), whose sum is σ = 983367216. Its totient is φ = 134477376.

The previous prime is 428646901. The next prime is 428646983. The reversal of 428646942 is 249646824.

It is an interprime number because it is at equal distance from previous prime (428646901) and next prime (428646983).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700098 + ... + 700709.

It is an arithmetic number, because the mean of its divisors is an integer number (40973634).

Almost surely, 2^428646942 is an apocalyptic number.

428646942 is an abundant number, since it is smaller than the sum of its proper divisors (554720274).

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

428646942 is a wasteful number, since it uses less digits than its factorization.

428646942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400832 (or 1400829 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 428646942 is about 20703.7905225106. The cubic root of 428646942 is about 753.9917198724.

The spelling of 428646942 in words is "four hundred twenty-eight million, six hundred forty-six thousand, nine hundred forty-two".