428511742 has 8 divisors (see below), whose sum is σ = 647674632. Its totient is φ = 212620200.

The previous prime is 428511739. The next prime is 428511773. The reversal of 428511742 is 247115824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 428511698 and 428511707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817509 + ... + 818032.

It is an arithmetic number, because the mean of its divisors is an integer number (80959329).

Almost surely, 2^428511742 is an apocalyptic number.

428511742 is a deficient number, since it is larger than the sum of its proper divisors (219162890).

428511742 is a wasteful number, since it uses less digits than its factorization.

428511742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635674.

The product of its digits is 17920, while the sum is 34.

The square root of 428511742 is about 20700.5251624204. The cubic root of 428511742 is about 753.9124390859.

The spelling of 428511742 in words is "four hundred twenty-eight million, five hundred eleven thousand, seven hundred forty-two".