426019203 has 8 divisors (see below), whose sum is σ = 631139600. Its totient is φ = 284012784.

The previous prime is 426019199. The next prime is 426019219. The reversal of 426019203 is 302910624.

It is not a de Polignac number, because 426019203 - 2² = 426019199 is a prime.

It is a super-2 number, since 2×426019203² = 362984722649510418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 15778489 = 426019203 / (4 + 2 + 6 + 0 + 1 + 9 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426019403) 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, 7889218 + ... + 7889271.

It is an arithmetic number, because the mean of its divisors is an integer number (78892450).

Almost surely, 2^426019203 is an apocalyptic number.

426019203 is a deficient number, since it is larger than the sum of its proper divisors (205120397).

426019203 is a wasteful number, since it uses less digits than its factorization.

426019203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15778498 (or 15778492 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 426019203 is about 20640.2326295030. The cubic root of 426019203 is about 752.4478261712.

Adding to 426019203 its reverse (302910624), we get a palindrome (728929827).

The spelling of 426019203 in words is "four hundred twenty-six million, nineteen thousand, two hundred three".