40502169 has 12 divisors (see below), whose sum is σ = 58558500. Its totient is φ = 26975904.

The previous prime is 40502159. The next prime is 40502191. The reversal of 40502169 is 96120504.

It can be written as a sum of positive squares in 2 ways, for example, as 33212169 + 7290000 = 5763^2 + 2700^2 .

It is not a de Polignac number, because 40502169 - 2¹⁶ = 40436633 is a prime.

It is a super-2 number, since 2×40502169² = 3280851387409122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40502159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16387 + ... + 18695.

It is an arithmetic number, because the mean of its divisors is an integer number (4879875).

Almost surely, 2^40502169 is an apocalyptic number.

It is an amenable number.

40502169 is a deficient number, since it is larger than the sum of its proper divisors (18056331).

40502169 is a wasteful number, since it uses less digits than its factorization.

40502169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264 (or 4261 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 40502169 is about 6364.1314411316. The cubic root of 40502169 is about 343.4204032373.

The spelling of 40502169 in words is "forty million, five hundred two thousand, one hundred sixty-nine".