426644142 has 16 divisors (see below), whose sum is σ = 855046272. Its totient is φ = 141921720.

The previous prime is 426644131. The next prime is 426644147. The reversal of 426644142 is 241446624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426644147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70084 + ... + 75927.

It is an arithmetic number, because the mean of its divisors is an integer number (53440392).

Almost surely, 2^426644142 is an apocalyptic number.

426644142 is an abundant number, since it is smaller than the sum of its proper divisors (428402130).

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

426644142 is a wasteful number, since it uses less digits than its factorization.

426644142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146503.

The product of its digits is 36864, while the sum is 33.

The square root of 426644142 is about 20655.3659372087. The cubic root of 426644142 is about 752.8155750449.

The spelling of 426644142 in words is "four hundred twenty-six million, six hundred forty-four thousand, one hundred forty-two".