40280903 has 4 divisors (see below), whose sum is σ = 43379448. Its totient is φ = 37182360.

The previous prime is 40280897. The next prime is 40280951. The reversal of 40280903 is 30908204.

40280903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40280903 - 2⁶ = 40280839 is a prime.

It is a super-2 number, since 2×40280903² = 3245102292990818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40280963) 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 3 ways as a sum of consecutive naturals, for example, 1549253 + ... + 1549278.

It is an arithmetic number, because the mean of its divisors is an integer number (10844862).

Almost surely, 2^40280903 is an apocalyptic number.

40280903 is a deficient number, since it is larger than the sum of its proper divisors (3098545).

40280903 is a wasteful number, since it uses less digits than its factorization.

40280903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098544.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 40280903 is about 6346.7238005131. The cubic root of 40280903 is about 342.7938848986.

The spelling of 40280903 in words is "forty million, two hundred eighty thousand, nine hundred three".