400021453133 has 8 divisors (see below), whose sum is σ = 414449089536. Its totient is φ = 385689049200.

The previous prime is 400021453127. The next prime is 400021453157. The reversal of 400021453133 is 331354120004.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400021453133 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 (400021453103) 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, 23799566 + ... + 23816367.

It is an arithmetic number, because the mean of its divisors is an integer number (51806136192).

Almost surely, 2^400021453133 is an apocalyptic number.

It is an amenable number.

400021453133 is a deficient number, since it is larger than the sum of its proper divisors (14427636403).

400021453133 is a wasteful number, since it uses less digits than its factorization.

400021453133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47616235.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 400021453133 its reverse (331354120004), we get a palindrome (731375573137).

The spelling of 400021453133 in words is "four hundred billion, twenty-one million, four hundred fifty-three thousand, one hundred thirty-three".