40028901 has 24 divisors (see below), whose sum is σ = 60891936. Its totient is φ = 23195040.

The previous prime is 40028899. The next prime is 40028917. The reversal of 40028901 is 10982004.

40028901 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 40028901 - 2¹ = 40028899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40028941) 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 23 ways as a sum of consecutive naturals, for example, 16311 + ... + 18603.

It is an arithmetic number, because the mean of its divisors is an integer number (2537164).

Almost surely, 2^40028901 is an apocalyptic number.

It is an amenable number.

40028901 is a deficient number, since it is larger than the sum of its proper divisors (20863035).

40028901 is a wasteful number, since it uses less digits than its factorization.

40028901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 40028901 is about 6326.8397324415. The cubic root of 40028901 is about 342.0775361974.

The spelling of 40028901 in words is "forty million, twenty-eight thousand, nine hundred one".