426140393 has 4 divisors (see below), whose sum is σ = 487017600. Its totient is φ = 365263188.

The previous prime is 426140383. The next prime is 426140431. The reversal of 426140393 is 393041624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 426140393 - 2⁶ = 426140329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426140383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30438593 + ... + 30438606.

It is an arithmetic number, because the mean of its divisors is an integer number (121754400).

Almost surely, 2^426140393 is an apocalyptic number.

It is an amenable number.

426140393 is a deficient number, since it is larger than the sum of its proper divisors (60877207).

426140393 is an equidigital number, since it uses as much as digits as its factorization.

426140393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60877206.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 426140393 is about 20643.1681919225. The cubic root of 426140393 is about 752.5191692044.

The spelling of 426140393 in words is "four hundred twenty-six million, one hundred forty thousand, three hundred ninety-three".