40709469 has 16 divisors (see below), whose sum is σ = 55664640. Its totient is φ = 26454960.

The previous prime is 40709467. The next prime is 40709477. The reversal of 40709469 is 96490704.

It is not a de Polignac number, because 40709469 - 2¹ = 40709467 is a prime.

It is a super-2 number, since 2×40709469² = 3314521732523922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40709467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21574 + ... + 23384.

It is an arithmetic number, because the mean of its divisors is an integer number (3479040).

Almost surely, 2^40709469 is an apocalyptic number.

It is an amenable number.

40709469 is a deficient number, since it is larger than the sum of its proper divisors (14955171).

40709469 is a wasteful number, since it uses less digits than its factorization.

40709469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 40709469 is about 6380.3972446863. The cubic root of 40709469 is about 344.0053096575.

The spelling of 40709469 in words is "forty million, seven hundred nine thousand, four hundred sixty-nine".