40055403 has 8 divisors (see below), whose sum is σ = 54649408. Its totient is φ = 26082504.

The previous prime is 40055369. The next prime is 40055437. The reversal of 40055403 is 30455004.

It is a happy number.

40055403 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 (40055369) and next prime (40055437).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40055403 - 2⁶ = 40055339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40055403.

It is not an unprimeable number, because it can be changed into a prime (40055453) 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, 155125 + ... + 155382.

It is an arithmetic number, because the mean of its divisors is an integer number (6831176).

Almost surely, 2^40055403 is an apocalyptic number.

40055403 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40055403 is a deficient number, since it is larger than the sum of its proper divisors (14594005).

40055403 is a wasteful number, since it uses less digits than its factorization.

40055403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310553.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 40055403 is about 6328.9337964621. The cubic root of 40055403 is about 342.1530128209.

The spelling of 40055403 in words is "forty million, fifty-five thousand, four hundred three".