20432403402 has 16 divisors (see below), whose sum is σ = 40866238560. Its totient is φ = 6810562512.

The previous prime is 20432403379. The next prime is 20432403419. The reversal of 20432403402 is 20430423402.

It is a super-2 number, since 2×20432403402² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247593 + ... + 319635.

It is an arithmetic number, because the mean of its divisors is an integer number (2554139910).

Almost surely, 2^20432403402 is an apocalyptic number.

20432403402 is an abundant number, since it is smaller than the sum of its proper divisors (20433835158).

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

20432403402 is a wasteful number, since it uses less digits than its factorization.

20432403402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119317.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20432403402 its reverse (20430423402), we get a palindrome (40862826804).

The spelling of 20432403402 in words is "twenty billion, four hundred thirty-two million, four hundred three thousand, four hundred two".