428888942 has 4 divisors (see below), whose sum is σ = 643333416. Its totient is φ = 214444470.

The previous prime is 428888921. The next prime is 428888963. The reversal of 428888942 is 249888824.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (428888921) and next prime (428888963).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107222234 + ... + 107222237.

It is an arithmetic number, because the mean of its divisors is an integer number (160833354).

Almost surely, 2^428888942 is an apocalyptic number.

428888942 is a deficient number, since it is larger than the sum of its proper divisors (214444474).

428888942 is a wasteful number, since it uses less digits than its factorization.

428888942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214444473.

The product of its digits is 2359296, while the sum is 53.

The square root of 428888942 is about 20709.6340382924. The cubic root of 428888942 is about 754.1335861738.

The spelling of 428888942 in words is "four hundred twenty-eight million, eight hundred eighty-eight thousand, nine hundred forty-two".