402426833 has 2 divisors, whose sum is σ = 402426834. Its totient is φ = 402426832.

The previous prime is 402426811. The next prime is 402426853. The reversal of 402426833 is 338624204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274465489 + 127961344 = 16567^2 + 11312^2 .

It is a cyclic number.

It is not a de Polignac number, because 402426833 - 2¹⁰ = 402425809 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_21458714 and since 402426833 and 21458714 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402426833.

It is not a weakly prime, because it can be changed into another prime (402426803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201213416 + 201213417.

It is an arithmetic number, because the mean of its divisors is an integer number (201213417).

Almost surely, 2^402426833 is an apocalyptic number.

It is an amenable number.

402426833 is a deficient number, since it is larger than the sum of its proper divisors (1).

402426833 is an equidigital number, since it uses as much as digits as its factorization.

402426833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 402426833 is about 20060.5790793785. The cubic root of 402426833 is about 738.2933845508.

The spelling of 402426833 in words is "four hundred two million, four hundred twenty-six thousand, eight hundred thirty-three".