40849408 has 26 divisors (see below), whose sum is σ = 81697034. Its totient is φ = 20422656.

The previous prime is 40849381. The next prime is 40849409. The reversal of 40849408 is 80494804.

It can be written as a sum of positive squares in only one way, i.e., 27541504 + 13307904 = 5248^2 + 3648^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40849409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 891 + ... + 9082.

Almost surely, 2^40849408 is an apocalyptic number.

It is an amenable number.

40849408 is a deficient number, since it is larger than the sum of its proper divisors (40847626).

40849408 is an frugal number, since it uses more digits than its factorization.

40849408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9997 (or 9975 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 40849408 is about 6391.3541601135. The cubic root of 40849408 is about 344.3990321754.

The spelling of 40849408 in words is "forty million, eight hundred forty-nine thousand, four hundred eight".