40508349 has 24 divisors (see below), whose sum is σ = 63146880. Its totient is φ = 23030784.

The previous prime is 40508329. The next prime is 40508371. The reversal of 40508349 is 94380504.

It is not a de Polignac number, because 40508349 - 2⁹ = 40507837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40508309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34557 + ... + 35709.

It is an arithmetic number, because the mean of its divisors is an integer number (2631120).

Almost surely, 2^40508349 is an apocalyptic number.

40508349 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

40508349 is a deficient number, since it is larger than the sum of its proper divisors (22638531).

40508349 is a wasteful number, since it uses less digits than its factorization.

40508349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 40508349 is about 6364.6169562669. The cubic root of 40508349 is about 343.4378692167.

The spelling of 40508349 in words is "forty million, five hundred eight thousand, three hundred forty-nine".