402523283 has 2 divisors, whose sum is σ = 402523284. Its totient is φ = 402523282.

The previous prime is 402523243. The next prime is 402523327. The reversal of 402523283 is 382325204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402523283 - 2⁸ = 402523027 is a prime.

It is not a weakly prime, because it can be changed into another prime (402523243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201261641 + 201261642.

It is an arithmetic number, because the mean of its divisors is an integer number (201261642).

Almost surely, 2^402523283 is an apocalyptic number.

402523283 is a deficient number, since it is larger than the sum of its proper divisors (1).

402523283 is an equidigital number, since it uses as much as digits as its factorization.

402523283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 402523283 is about 20062.9829038456. The cubic root of 402523283 is about 738.3523623185.

Adding to 402523283 its reverse (382325204), we get a palindrome (784848487).

The spelling of 402523283 in words is "four hundred two million, five hundred twenty-three thousand, two hundred eighty-three".