940450669 has 2 divisors, whose sum is σ = 940450670. Its totient is φ = 940450668.

The previous prime is 940450633. The next prime is 940450691. The reversal of 940450669 is 966054049.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 876929769 + 63520900 = 29613^2 + 7970^2 .

It is an emirp because it is prime and its reverse (966054049) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940450669 is a prime.

It is a super-2 number, since 2×940450669² = 1768894921645095122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940450699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470225334 + 470225335.

It is an arithmetic number, because the mean of its divisors is an integer number (470225335).

Almost surely, 2^940450669 is an apocalyptic number.

It is an amenable number.

940450669 is a deficient number, since it is larger than the sum of its proper divisors (1).

940450669 is an equidigital number, since it uses as much as digits as its factorization.

940450669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 940450669 is about 30666.7681538176. The cubic root of 940450669 is about 979.7426330272.

The spelling of 940450669 in words is "nine hundred forty million, four hundred fifty thousand, six hundred sixty-nine".