400530204050421 has 8 divisors (see below), whose sum is σ = 534061018849504. Its totient is φ = 267009762642480.

The previous prime is 400530204050419. The next prime is 400530204050447. The reversal of 400530204050421 is 124050402035004.

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

It is not a de Polignac number, because 400530204050421 - 2¹ = 400530204050419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400530204050411) 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, 2593257691 + ... + 2593412136.

It is an arithmetic number, because the mean of its divisors is an integer number (66757627356188).

Almost surely, 2^{400530204050421} is an apocalyptic number.

It is an amenable number.

400530204050421 is a deficient number, since it is larger than the sum of its proper divisors (133530814799083).

400530204050421 is a wasteful number, since it uses less digits than its factorization.

400530204050421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186695571.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 400530204050421 its reverse (124050402035004), we get a palindrome (524580606085425).

The spelling of 400530204050421 in words is "four hundred trillion, five hundred thirty billion, two hundred four million, fifty thousand, four hundred twenty-one".