4140452421 has 18 divisors (see below), whose sum is σ = 6957087462. Its totient is φ = 2365972560.

The previous prime is 4140452383. The next prime is 4140452429. The reversal of 4140452421 is 1242540414.

4140452421 is a `hidden beast` number, since 414 + 0 + 4 + 5 + 242 + 1 = 666.

4140452421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3541916196 + 598536225 = 59514^2 + 24465^2 .

It is not a de Polignac number, because 4140452421 - 2¹⁰ = 4140451397 is a prime.

It is a super-2 number, since 2×4140452421² = 34286692501129522482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140452429) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4693950 + ... + 4694831.

It is an arithmetic number, because the mean of its divisors is an integer number (386504859).

Almost surely, 2^4140452421 is an apocalyptic number.

It is an amenable number.

4140452421 is a deficient number, since it is larger than the sum of its proper divisors (2816635041).

4140452421 is a wasteful number, since it uses less digits than its factorization.

4140452421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9388801 (or 9388791 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 4140452421 is about 64346.3473788528. The cubic root of 4140452421 is about 1605.7672623517.

Adding to 4140452421 its reverse (1242540414), we get a palindrome (5382992835).

The spelling of 4140452421 in words is "four billion, one hundred forty million, four hundred fifty-two thousand, four hundred twenty-one".