40549550 has 24 divisors (see below), whose sum is σ = 77858112. Its totient is φ = 15696000.

The previous prime is 40549549. The next prime is 40549571. The reversal of 40549550 is 5594504.

It is a happy number.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11531 + ... + 14630.

It is an arithmetic number, because the mean of its divisors is an integer number (3244088).

Almost surely, 2^40549550 is an apocalyptic number.

40549550 is a deficient number, since it is larger than the sum of its proper divisors (37308562).

40549550 is a wasteful number, since it uses less digits than its factorization.

40549550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26204 (or 26199 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 40549550 is about 6367.8528563402. The cubic root of 40549550 is about 343.5542665307.

The spelling of 40549550 in words is "forty million, five hundred forty-nine thousand, five hundred fifty".