40469499 has 12 divisors (see below), whose sum is σ = 66806896. Its totient is φ = 23125392.

The previous prime is 40469461. The next prime is 40469543. The reversal of 40469499 is 99496404.

It is not a de Polignac number, because 40469499 - 2¹⁹ = 39945211 is a prime.

It is a super-2 number, since 2×40469499² = 3275560698622002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40469459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321124 + ... + 321249.

Almost surely, 2^40469499 is an apocalyptic number.

40469499 is a deficient number, since it is larger than the sum of its proper divisors (26337397).

40469499 is a wasteful number, since it uses less digits than its factorization.

40469499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642386 (or 642383 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 40469499 is about 6361.5641944415. The cubic root of 40469499 is about 343.3280414136.

The spelling of 40469499 in words is "forty million, four hundred sixty-nine thousand, four hundred ninety-nine".