426111021 has 48 divisors (see below), whose sum is σ = 716421888. Its totient is φ = 239040000.

The previous prime is 426111019. The next prime is 426111053. The reversal of 426111021 is 120111624.

426111021 is a `hidden beast` number, since 42 + 611 + 10 + 2 + 1 = 666.

It is not a de Polignac number, because 426111021 - 2¹ = 426111019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426110985 and 426111003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426111121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1062421 + ... + 1062821.

It is an arithmetic number, because the mean of its divisors is an integer number (14925456).

Almost surely, 2^426111021 is an apocalyptic number.

It is an amenable number.

426111021 is a deficient number, since it is larger than the sum of its proper divisors (290310867).

426111021 is a wasteful number, since it uses less digits than its factorization.

426111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 426111021 is about 20642.4567578571. The cubic root of 426111021 is about 752.5018795183.

Adding to 426111021 its reverse (120111624), we get a palindrome (546222645).

The spelling of 426111021 in words is "four hundred twenty-six million, one hundred eleven thousand, twenty-one".