40948121 has 6 divisors (see below), whose sum is σ = 43498830. Its totient is φ = 38539136.

The previous prime is 40948093. The next prime is 40948147. The reversal of 40948121 is 12184904.

It can be written as a sum of positive squares in 3 ways, for example, as 22458121 + 18490000 = 4739^2 + 4300^2 .

It is not a de Polignac number, because 40948121 - 2¹⁰ = 40947097 is a prime.

It is a super-2 number, since 2×40948121² = 3353497226861282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40948181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70556 + ... + 71133.

It is an arithmetic number, because the mean of its divisors is an integer number (7249805).

Almost surely, 2^40948121 is an apocalyptic number.

It is an amenable number.

40948121 is a deficient number, since it is larger than the sum of its proper divisors (2550709).

40948121 is a wasteful number, since it uses less digits than its factorization.

40948121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141723 (or 141706 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 40948121 is about 6399.0718858284. The cubic root of 40948121 is about 344.6762235768.

The spelling of 40948121 in words is "forty million, nine hundred forty-eight thousand, one hundred twenty-one".