403442069 has 2 divisors, whose sum is σ = 403442070. Its totient is φ = 403442068.

The previous prime is 403442051. The next prime is 403442087. The reversal of 403442069 is 960244304.

It is a balanced prime because it is at equal distance from previous prime (403442051) and next prime (403442087).

It can be written as a sum of positive squares in only one way, i.e., 386319025 + 17123044 = 19655^2 + 4138^2 .

It is a cyclic number.

It is not a de Polignac number, because 403442069 - 2²⁰ = 402393493 is a prime.

It is a super-2 number, since 2×403442069² = 325531006078001522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403442569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201721034 + 201721035.

It is an arithmetic number, because the mean of its divisors is an integer number (201721035).

Almost surely, 2^403442069 is an apocalyptic number.

It is an amenable number.

403442069 is a deficient number, since it is larger than the sum of its proper divisors (1).

403442069 is an equidigital number, since it uses as much as digits as its factorization.

403442069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 403442069 is about 20085.8673947629. The cubic root of 403442069 is about 738.9137147841.

The spelling of 403442069 in words is "four hundred three million, four hundred forty-two thousand, sixty-nine".