40003355 has 24 divisors (see below), whose sum is σ = 56698128. Its totient is φ = 27010368.

The previous prime is 40003319. The next prime is 40003387. The reversal of 40003355 is 55330004.

40003355 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 40003355 - 2¹⁶ = 39937819 is a prime.

It is a super-2 number, since 2×40003355² = 3200536822512050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 15197 + ... + 17633.

It is an arithmetic number, because the mean of its divisors is an integer number (2362422).

Almost surely, 2^40003355 is an apocalyptic number.

40003355 is a deficient number, since it is larger than the sum of its proper divisors (16694773).

40003355 is a wasteful number, since it uses less digits than its factorization.

40003355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523 (or 2516 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 40003355 is about 6324.8205508141. The cubic root of 40003355 is about 342.0047506835.

Adding to 40003355 its reverse (55330004), we get a palindrome (95333359).

The spelling of 40003355 in words is "forty million, three thousand, three hundred fifty-five".