40986469 has 2 divisors, whose sum is σ = 40986470. Its totient is φ = 40986468.

The previous prime is 40986467. The next prime is 40986487. The reversal of 40986469 is 96468904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21068100 + 19918369 = 4590^2 + 4463^2 .

It is a cyclic number.

It is not a de Polignac number, because 40986469 - 2¹ = 40986467 is a prime.

It is a super-2 number, since 2×40986469² = 3359781282175922, which contains 22 as substring.

Together with 40986467, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40986467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20493234 + 20493235.

It is an arithmetic number, because the mean of its divisors is an integer number (20493235).

Almost surely, 2^40986469 is an apocalyptic number.

It is an amenable number.

40986469 is a deficient number, since it is larger than the sum of its proper divisors (1).

40986469 is an equidigital number, since it uses as much as digits as its factorization.

40986469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 40986469 is about 6402.0675566570. The cubic root of 40986469 is about 344.7837866715.

The spelling of 40986469 in words is "forty million, nine hundred eighty-six thousand, four hundred sixty-nine".