428619042 has 24 divisors (see below), whose sum is σ = 929061900. Its totient is φ = 142813440.

The previous prime is 428619029. The next prime is 428619049. The reversal of 428619042 is 240916824.

428619042 is a `hidden beast` number, since 428 + 6 + 190 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 427621041 + 998001 = 20679^2 + 999^2 .

It is a junction number, because it is equal to n+sod(n) for n = 428618988 and 428619006.

It is not an unprimeable number, because it can be changed into a prime (428619049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69942 + ... + 75822.

Almost surely, 2^428619042 is an apocalyptic number.

428619042 is an abundant number, since it is smaller than the sum of its proper divisors (500442858).

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

428619042 is a wasteful number, since it uses less digits than its factorization.

428619042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9938 (or 9935 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 428619042 is about 20703.1167218851. The cubic root of 428619042 is about 753.9753607795.

The spelling of 428619042 in words is "four hundred twenty-eight million, six hundred nineteen thousand, forty-two".