426642742 has 8 divisors (see below), whose sum is σ = 647674776. Its totient is φ = 210751152.

The previous prime is 426642719. The next prime is 426642767. The reversal of 426642742 is 247246624.

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

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, 1284903 + ... + 1285234.

It is an arithmetic number, because the mean of its divisors is an integer number (80959347).

Almost surely, 2^426642742 is an apocalyptic number.

426642742 is a deficient number, since it is larger than the sum of its proper divisors (221032034).

426642742 is a wasteful number, since it uses less digits than its factorization.

426642742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570222.

The product of its digits is 129024, while the sum is 37.

The square root of 426642742 is about 20655.3320476820. The cubic root of 426642742 is about 752.8147516085.

The spelling of 426642742 in words is "four hundred twenty-six million, six hundred forty-two thousand, seven hundred forty-two".