402466693 has 2 divisors, whose sum is σ = 402466694. Its totient is φ = 402466692.

The previous prime is 402466667. The next prime is 402466711. The reversal of 402466693 is 396664204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206410689 + 196056004 = 14367^2 + 14002^2 .

It is a cyclic number.

It is not a de Polignac number, because 402466693 - 2⁵ = 402466661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402466613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201233346 + 201233347.

It is an arithmetic number, because the mean of its divisors is an integer number (201233347).

Almost surely, 2^402466693 is an apocalyptic number.

It is an amenable number.

402466693 is a deficient number, since it is larger than the sum of its proper divisors (1).

402466693 is an equidigital number, since it uses as much as digits as its factorization.

402466693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 402466693 is about 20061.5725455409. The cubic root of 402466693 is about 738.3177595016.

The spelling of 402466693 in words is "four hundred two million, four hundred sixty-six thousand, six hundred ninety-three".