21414401432 has 16 divisors (see below), whose sum is σ = 40162454640. Its totient is φ = 10704413536.

The previous prime is 21414401399. The next prime is 21414401453. The reversal of 21414401432 is 23410441412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315563 + ... + 377370.

It is an arithmetic number, because the mean of its divisors is an integer number (2510153415).

Almost surely, 2^21414401432 is an apocalyptic number.

It is an amenable number.

21414401432 is a deficient number, since it is larger than the sum of its proper divisors (18748053208).

21414401432 is a wasteful number, since it uses less digits than its factorization.

21414401432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696802 (or 696798 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 21414401432 its reverse (23410441412), we get a palindrome (44824842844).

The spelling of 21414401432 in words is "twenty-one billion, four hundred fourteen million, four hundred one thousand, four hundred thirty-two".