402264437 has 2 divisors, whose sum is σ = 402264438. Its totient is φ = 402264436.

The previous prime is 402264323. The next prime is 402264479. The reversal of 402264437 is 734462204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380679121 + 21585316 = 19511^2 + 4646^2 .

It is a cyclic number.

It is not a de Polignac number, because 402264437 - 2¹⁰ = 402263413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402264497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201132218 + 201132219.

It is an arithmetic number, because the mean of its divisors is an integer number (201132219).

Almost surely, 2^402264437 is an apocalyptic number.

It is an amenable number.

402264437 is a deficient number, since it is larger than the sum of its proper divisors (1).

402264437 is an equidigital number, since it uses as much as digits as its factorization.

402264437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 402264437 is about 20056.5310310632. The cubic root of 402264437 is about 738.1940604717.

The spelling of 402264437 in words is "four hundred two million, two hundred sixty-four thousand, four hundred thirty-seven".