426631403 has 8 divisors (see below), whose sum is σ = 471972096. Its totient is φ = 382383400.

The previous prime is 426631367. The next prime is 426631417. The reversal of 426631403 is 304136624.

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

It is a cyclic number.

It is not a de Polignac number, because 426631403 - 2¹⁴ = 426615019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426631433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272351 + ... + 273912.

It is an arithmetic number, because the mean of its divisors is an integer number (58996512).

Almost surely, 2^426631403 is an apocalyptic number.

426631403 is a deficient number, since it is larger than the sum of its proper divisors (45340693).

426631403 is a wasteful number, since it uses less digits than its factorization.

426631403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546345.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 426631403 is about 20655.0575646741. The cubic root of 426631403 is about 752.8080822954.

The spelling of 426631403 in words is "four hundred twenty-six million, six hundred thirty-one thousand, four hundred three".