4041400121 has 24 divisors (see below), whose sum is σ = 4540016712. Its totient is φ = 3593779200.

The previous prime is 4041400093. The next prime is 4041400171. The reversal of 4041400121 is 1210041404.

It can be written as a sum of positive squares in 4 ways, for example, as 460574521 + 3580825600 = 21461^2 + 59840^2 .

It is not a de Polignac number, because 4041400121 - 2¹⁰ = 4041399097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4041400121.

It is not an unprimeable number, because it can be changed into a prime (4041400171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1423115 + ... + 1425951.

It is an arithmetic number, because the mean of its divisors is an integer number (189167363).

Almost surely, 2^4041400121 is an apocalyptic number.

It is an amenable number.

4041400121 is a deficient number, since it is larger than the sum of its proper divisors (498616591).

4041400121 is a wasteful number, since it uses less digits than its factorization.

4041400121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113 (or 3102 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 4041400121 is about 63572.0073695963. The cubic root of 4041400121 is about 1592.8588153500.

Adding to 4041400121 its reverse (1210041404), we get a palindrome (5251441525).

The spelling of 4041400121 in words is "four billion, forty-one million, four hundred thousand, one hundred twenty-one".