40401003 has 16 divisors (see below), whose sum is σ = 55830816. Its totient is φ = 25966080.

The previous prime is 40401001. The next prime is 40401013. The reversal of 40401003 is 30010404.

40401003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40401003 - 2¹ = 40401001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40401003.

It is not an unprimeable number, because it can be changed into a prime (40401001) 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 15 ways as a sum of consecutive naturals, for example, 10933 + ... + 14153.

It is an arithmetic number, because the mean of its divisors is an integer number (3489426).

Almost surely, 2^40401003 is an apocalyptic number.

40401003 is a deficient number, since it is larger than the sum of its proper divisors (15429813).

40401003 is a wasteful number, since it uses less digits than its factorization.

40401003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40401003 is about 6356.1783329293. The cubic root of 40401003 is about 343.1342339113.

Adding to 40401003 its reverse (30010404), we get a palindrome (70411407).

The spelling of 40401003 in words is "forty million, four hundred one thousand, three".