428673742 has 16 divisors (see below), whose sum is σ = 739553760. Its totient is φ = 182546208.

The previous prime is 428673733. The next prime is 428673757. The reversal of 428673742 is 247376824.

It is a super-2 number, since 2×428673742² = 367522354160565128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95317 + ... + 99712.

It is an arithmetic number, because the mean of its divisors is an integer number (46222110).

Almost surely, 2^428673742 is an apocalyptic number.

428673742 is a deficient number, since it is larger than the sum of its proper divisors (310880018).

428673742 is a wasteful number, since it uses less digits than its factorization.

428673742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195195.

The product of its digits is 451584, while the sum is 43.

The square root of 428673742 is about 20704.4377368718. The cubic root of 428673742 is about 754.0074333147.

The spelling of 428673742 in words is "four hundred twenty-eight million, six hundred seventy-three thousand, seven hundred forty-two".