405400021413 has 8 divisors (see below), whose sum is σ = 543277186848. Its totient is φ = 268894768464.

The previous prime is 405400021393. The next prime is 405400021459. The reversal of 405400021413 is 314120004504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 405400021413 - 2¹² = 405400017317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405400021483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342977431 + ... + 342978612.

It is an arithmetic number, because the mean of its divisors is an integer number (67909648356).

Almost surely, 2^405400021413 is an apocalyptic number.

It is an amenable number.

405400021413 is a deficient number, since it is larger than the sum of its proper divisors (137877165435).

405400021413 is a wasteful number, since it uses less digits than its factorization.

405400021413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685956243.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 405400021413 its reverse (314120004504), we get a palindrome (719520025917).

The spelling of 405400021413 in words is "four hundred five billion, four hundred million, twenty-one thousand, four hundred thirteen".