426340691 has 8 divisors (see below), whose sum is σ = 487428960. Its totient is φ = 365298048.

The previous prime is 426340669. The next prime is 426340693. The reversal of 426340691 is 196043624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426340691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426340693) 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, 11765 + ... + 31481.

It is an arithmetic number, because the mean of its divisors is an integer number (60928620).

Almost surely, 2^426340691 is an apocalyptic number.

426340691 is a deficient number, since it is larger than the sum of its proper divisors (61088269).

426340691 is a wasteful number, since it uses less digits than its factorization.

426340691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22813.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 426340691 is about 20648.0190575270. The cubic root of 426340691 is about 752.6370524793.

The spelling of 426340691 in words is "four hundred twenty-six million, three hundred forty thousand, six hundred ninety-one".