402331373 has 2 divisors, whose sum is σ = 402331374. Its totient is φ = 402331372.

The previous prime is 402331337. The next prime is 402331381. The reversal of 402331373 is 373133204.

Together with previous prime (402331337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371217289 + 31114084 = 19267^2 + 5578^2 .

It is a cyclic number.

It is not a de Polignac number, because 402331373 - 2¹⁰ = 402330349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402331393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201165686 + 201165687.

It is an arithmetic number, because the mean of its divisors is an integer number (201165687).

Almost surely, 2^402331373 is an apocalyptic number.

It is an amenable number.

402331373 is a deficient number, since it is larger than the sum of its proper divisors (1).

402331373 is an equidigital number, since it uses as much as digits as its factorization.

402331373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 26.

The square root of 402331373 is about 20058.1996450330. The cubic root of 402331373 is about 738.2350028740.

Adding to 402331373 its reverse (373133204), we get a palindrome (775464577).

The spelling of 402331373 in words is "four hundred two million, three hundred thirty-one thousand, three hundred seventy-three".