404300213421 has 16 divisors (see below), whose sum is σ = 581341098240. Its totient is φ = 248454077760.

The previous prime is 404300213393. The next prime is 404300213441. The reversal of 404300213421 is 124312003404.

It is not a de Polignac number, because 404300213421 - 2⁶ = 404300213357 is a prime.

It is a super-2 number, since 2×404300213421² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404300213391 and 404300213400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404300213441) 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, 7181050 + ... + 7237131.

It is an arithmetic number, because the mean of its divisors is an integer number (36333818640).

Almost surely, 2^404300213421 is an apocalyptic number.

It is an amenable number.

404300213421 is a deficient number, since it is larger than the sum of its proper divisors (177040884819).

404300213421 is a wasteful number, since it uses less digits than its factorization.

404300213421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14418916.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 404300213421 its reverse (124312003404), we get a palindrome (528612216825).

The spelling of 404300213421 in words is "four hundred four billion, three hundred million, two hundred thirteen thousand, four hundred twenty-one".