40490055 has 12 divisors (see below), whose sum is σ = 70182840. Its totient is φ = 21594672.

The previous prime is 40490053. The next prime is 40490057. The reversal of 40490055 is 55009404.

40490055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40490053) and next prime (40490057).

It is not a de Polignac number, because 40490055 - 2¹ = 40490053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40490053) 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 11 ways as a sum of consecutive naturals, for example, 449845 + ... + 449934.

It is an arithmetic number, because the mean of its divisors is an integer number (5848570).

Almost surely, 2^40490055 is an apocalyptic number.

40490055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40490055 is a deficient number, since it is larger than the sum of its proper divisors (29692785).

40490055 is a wasteful number, since it uses less digits than its factorization.

40490055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899790 (or 899787 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 40490055 is about 6363.1796297134. The cubic root of 40490055 is about 343.3861613707.

Adding to 40490055 its reverse (55009404), we get a palindrome (95499459).

The spelling of 40490055 in words is "forty million, four hundred ninety thousand, fifty-five".