426202251 has 24 divisors (see below), whose sum is σ = 589239504. Its totient is φ = 273968640.

The previous prime is 426202237. The next prime is 426202307. The reversal of 426202251 is 152202624.

It is a happy number.

It is not a de Polignac number, because 426202251 - 2⁶ = 426202187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426202201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 483331 + ... + 484211.

It is an arithmetic number, because the mean of its divisors is an integer number (24551646).

Almost surely, 2^426202251 is an apocalyptic number.

426202251 is a deficient number, since it is larger than the sum of its proper divisors (163037253).

426202251 is an equidigital number, since it uses as much as digits as its factorization.

426202251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 426202251 is about 20644.6664056361. Note that the first 3 decimals coincide. The cubic root of 426202251 is about 752.5555790194. Note that the first 4 decimals are identical.

Adding to 426202251 its reverse (152202624), we get a palindrome (578404875).

The spelling of 426202251 in words is "four hundred twenty-six million, two hundred two thousand, two hundred fifty-one".