400024013021332 has 12 divisors (see below), whose sum is σ = 800048026042720. Its totient is φ = 171438862723416.

The previous prime is 400024013021309. The next prime is 400024013021377. The reversal of 400024013021332 is 233120310420004.

400024013021332 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 400024013021297 and 400024013021306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7143285946782 + ... + 7143285946837.

Almost surely, 2^{400024013021332} is an apocalyptic number.

It is an amenable number.

400024013021332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400024013021332 is a wasteful number, since it uses less digits than its factorization.

400024013021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14286571893630 (or 14286571893628 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 400024013021332 its reverse (233120310420004), we get a palindrome (633144323441336).

The spelling of 400024013021332 in words is "four hundred trillion, twenty-four billion, thirteen million, twenty-one thousand, three hundred thirty-two".