40949457 has 8 divisors (see below), whose sum is σ = 54660384. Its totient is φ = 27269088.

The previous prime is 40949449. The next prime is 40949471. The reversal of 40949457 is 75494904.

40949457 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 not a de Polignac number, because 40949457 - 2³ = 40949449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40947457) 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, 4303 + ... + 10020.

It is an arithmetic number, because the mean of its divisors is an integer number (6832548).

Almost surely, 2^40949457 is an apocalyptic number.

It is an amenable number.

40949457 is a deficient number, since it is larger than the sum of its proper divisors (13710927).

40949457 is a wasteful number, since it uses less digits than its factorization.

40949457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15279.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 40949457 is about 6399.1762751154. The cubic root of 40949457 is about 344.6799720795.

The spelling of 40949457 in words is "forty million, nine hundred forty-nine thousand, four hundred fifty-seven".