40350409 has 8 divisors (see below), whose sum is σ = 44455680. Its totient is φ = 36318000.

The previous prime is 40350403. The next prime is 40350491. The reversal of 40350409 is 90405304.

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 40350409 - 2⁵ = 40350377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40350403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17049 + ... + 19270.

It is an arithmetic number, because the mean of its divisors is an integer number (5556960).

Almost surely, 2^40350409 is an apocalyptic number.

It is an amenable number.

40350409 is a deficient number, since it is larger than the sum of its proper divisors (4105271).

40350409 is a wasteful number, since it uses less digits than its factorization.

40350409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36431.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40350409 is about 6352.1971789295. The cubic root of 40350409 is about 342.9909389101.

The spelling of 40350409 in words is "forty million, three hundred fifty thousand, four hundred nine".