40190169 has 4 divisors (see below), whose sum is σ = 53586896. Its totient is φ = 26793444.

The previous prime is 40190141. The next prime is 40190173. The reversal of 40190169 is 96109104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40190169 - 2⁷ = 40190041 is a prime.

It is a super-2 number, since 2×40190169² = 3230499368497122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40190179) 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 3 ways as a sum of consecutive naturals, for example, 6698359 + ... + 6698364.

It is an arithmetic number, because the mean of its divisors is an integer number (13396724).

Almost surely, 2^40190169 is an apocalyptic number.

It is an amenable number.

40190169 is a deficient number, since it is larger than the sum of its proper divisors (13396727).

40190169 is a wasteful number, since it uses less digits than its factorization.

40190169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13396726.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 40190169 is about 6339.5716732284. The cubic root of 40190169 is about 342.5363067342.

The spelling of 40190169 in words is "forty million, one hundred ninety thousand, one hundred sixty-nine".