40748121 has 24 divisors (see below), whose sum is σ = 60103680. Its totient is φ = 26597376.

The previous prime is 40748101. The next prime is 40748143. The reversal of 40748121 is 12184704.

40748121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-40748121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40748101) 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, 158425 + ... + 158681.

It is an arithmetic number, because the mean of its divisors is an integer number (2504320).

Almost surely, 2^40748121 is an apocalyptic number.

It is an amenable number.

40748121 is a deficient number, since it is larger than the sum of its proper divisors (19355559).

40748121 is a wasteful number, since it uses less digits than its factorization.

40748121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 40748121 is about 6383.4254910667. The cubic root of 40748121 is about 344.1141482776.

The spelling of 40748121 in words is "forty million, seven hundred forty-eight thousand, one hundred twenty-one".