426037491 has 18 divisors (see below), whose sum is σ = 676419380. Its totient is φ = 258203880.

The previous prime is 426037457. The next prime is 426037511. The reversal of 426037491 is 194730624.

426037491 is a `hidden beast` number, since 4 + 2 + 603 + 7 + 49 + 1 = 666.

It is not a de Polignac number, because 426037491 - 2⁶ = 426037427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426037411) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 194521 + ... + 196698.

Almost surely, 2^426037491 is an apocalyptic number.

426037491 is a deficient number, since it is larger than the sum of its proper divisors (250381889).

426037491 is a wasteful number, since it uses less digits than its factorization.

426037491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391247 (or 391233 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 426037491 is about 20640.6756430113. The cubic root of 426037491 is about 752.4585929542.

The spelling of 426037491 in words is "four hundred twenty-six million, thirty-seven thousand, four hundred ninety-one".