426145442 has 4 divisors (see below), whose sum is σ = 639218166. Its totient is φ = 213072720.

The previous prime is 426145441. The next prime is 426145453. The reversal of 426145442 is 244541624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 412536721 + 13608721 = 20311^2 + 3689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 426145399 and 426145408.

It is not an unprimeable number, because it can be changed into a prime (426145441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106536359 + ... + 106536362.

Almost surely, 2^426145442 is an apocalyptic number.

426145442 is a deficient number, since it is larger than the sum of its proper divisors (213072724).

426145442 is a wasteful number, since it uses less digits than its factorization.

426145442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213072723.

The product of its digits is 30720, while the sum is 32.

The square root of 426145442 is about 20643.2904838352. The cubic root of 426145442 is about 752.5221411939.

The spelling of 426145442 in words is "four hundred twenty-six million, one hundred forty-five thousand, four hundred forty-two".