402022237 has 2 divisors, whose sum is σ = 402022238. Its totient is φ = 402022236.

The previous prime is 402022217. The next prime is 402022241. The reversal of 402022237 is 732220204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 363817476 + 38204761 = 19074^2 + 6181^2 .

It is a cyclic number.

It is not a de Polignac number, because 402022237 - 2⁷ = 402022109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402022217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201011118 + 201011119.

It is an arithmetic number, because the mean of its divisors is an integer number (201011119).

Almost surely, 2^402022237 is an apocalyptic number.

It is an amenable number.

402022237 is a deficient number, since it is larger than the sum of its proper divisors (1).

402022237 is an equidigital number, since it uses as much as digits as its factorization.

402022237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 402022237 is about 20050.4921884726. The cubic root of 402022237 is about 738.0458772703.

The spelling of 402022237 in words is "four hundred two million, twenty-two thousand, two hundred thirty-seven".