40859469 has 12 divisors (see below), whose sum is σ = 67450656. Its totient is φ = 23348232.

The previous prime is 40859461. The next prime is 40859471. The reversal of 40859469 is 96495804.

It is a happy number.

It is not a de Polignac number, because 40859469 - 2³ = 40859461 is a prime.

It is a super-2 number, since 2×40859469² = 3338992413923922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40859461) 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 in 11 ways as a sum of consecutive naturals, for example, 324219 + ... + 324344.

It is an arithmetic number, because the mean of its divisors is an integer number (5620888).

Almost surely, 2^40859469 is an apocalyptic number.

It is an amenable number.

40859469 is a deficient number, since it is larger than the sum of its proper divisors (26591187).

40859469 is a wasteful number, since it uses less digits than its factorization.

40859469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648576 (or 648573 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 40859469 is about 6392.1411905558. The cubic root of 40859469 is about 344.4273044271.

It can be divided in two parts, 40859 and 469, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 40859469 in words is "forty million, eight hundred fifty-nine thousand, four hundred sixty-nine".