40121269 has 8 divisors (see below), whose sum is σ = 42089472. Its totient is φ = 38171760.

The previous prime is 40121261. The next prime is 40121303. The reversal of 40121269 is 96212104.

40121269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40121269 - 2³ = 40121261 is a prime.

It is a super-2 number, since 2×40121269² = 3219432452340722, 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 (40121261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174 + ... + 8959.

It is an arithmetic number, because the mean of its divisors is an integer number (5261184).

Almost surely, 2^40121269 is an apocalyptic number.

It is an amenable number.

40121269 is a deficient number, since it is larger than the sum of its proper divisors (1968203).

40121269 is a wasteful number, since it uses less digits than its factorization.

40121269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9347.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 40121269 is about 6334.1352211648. The cubic root of 40121269 is about 342.3404524442.

The spelling of 40121269 in words is "forty million, one hundred twenty-one thousand, two hundred sixty-nine".