20223432402 has 32 divisors (see below), whose sum is σ = 41857836480. Its totient is φ = 6506162880.

The previous prime is 20223432377. The next prime is 20223432403. The reversal of 20223432402 is 20423432202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20223432403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455733 + ... + 498135.

It is an arithmetic number, because the mean of its divisors is an integer number (1308057390).

Almost surely, 2^20223432402 is an apocalyptic number.

20223432402 is an abundant number, since it is smaller than the sum of its proper divisors (21634404078).

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

20223432402 is a wasteful number, since it uses less digits than its factorization.

20223432402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45178.

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

Adding to 20223432402 its reverse (20423432202), we get a palindrome (40646864604).

The spelling of 20223432402 in words is "twenty billion, two hundred twenty-three million, four hundred thirty-two thousand, four hundred two".