20432865414 has 64 divisors (see below), whose sum is σ = 46103500800. Its totient is φ = 5993350272.

The previous prime is 20432865407. The next prime is 20432865433. The reversal of 20432865414 is 41456823402.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121527 + ... + 235869.

It is an arithmetic number, because the mean of its divisors is an integer number (720367200).

Almost surely, 2^20432865414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20432865414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23051750400).

20432865414 is an abundant number, since it is smaller than the sum of its proper divisors (25670635386).

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

20432865414 is a wasteful number, since it uses less digits than its factorization.

20432865414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114469.

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 20432865414 in words is "twenty billion, four hundred thirty-two million, eight hundred sixty-five thousand, four hundred fourteen".