4032400030421 has 4 divisors (see below), whose sum is σ = 4608457177632. Its totient is φ = 3456342883212.

The previous prime is 4032400030403. The next prime is 4032400030429. The reversal of 4032400030421 is 1240300042304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4032400030421 - 2⁶ = 4032400030357 is a prime.

It is a super-4 number, since 4×4032400030421⁴ (a number of 52 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4032400030429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288028573595 + ... + 288028573608.

It is an arithmetic number, because the mean of its divisors is an integer number (1152114294408).

Almost surely, 2^{4032400030421} is an apocalyptic number.

It is an amenable number.

4032400030421 is a deficient number, since it is larger than the sum of its proper divisors (576057147211).

4032400030421 is an equidigital number, since it uses as much as digits as its factorization.

4032400030421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576057147210.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 4032400030421 its reverse (1240300042304), we get a palindrome (5272700072725).

The spelling of 4032400030421 in words is "four trillion, thirty-two billion, four hundred million, thirty thousand, four hundred twenty-one".