4140401421 has 16 divisors (see below), whose sum is σ = 5985100800. Its totient is φ = 2530835520.

The previous prime is 4140401411. The next prime is 4140401429. The reversal of 4140401421 is 1241040414.

4140401421 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-4140401421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140401429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350445 + ... + 362066.

It is an arithmetic number, because the mean of its divisors is an integer number (374068800).

Almost surely, 2^4140401421 is an apocalyptic number.

It is an amenable number.

4140401421 is a deficient number, since it is larger than the sum of its proper divisors (1844699379).

4140401421 is a wasteful number, since it uses less digits than its factorization.

4140401421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712676.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4140401421 is about 64345.9510847419. The cubic root of 4140401421 is about 1605.7606693148.

Adding to 4140401421 its reverse (1241040414), we get a palindrome (5381441835).

The spelling of 4140401421 in words is "four billion, one hundred forty million, four hundred one thousand, four hundred twenty-one".