20401401032 has 32 divisors (see below), whose sum is σ = 38619741600. Its totient is φ = 10103144064.

The previous prime is 20401401019. The next prime is 20401401037. The reversal of 20401401032 is 23010410402.

It is a self number, because there is not a number n which added to its sum of digits gives 20401401032.

It is not an unprimeable number, because it can be changed into a prime (20401401037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464519 + ... + 506537.

It is an arithmetic number, because the mean of its divisors is an integer number (1206866925).

Almost surely, 2^20401401032 is an apocalyptic number.

It is an amenable number.

20401401032 is a deficient number, since it is larger than the sum of its proper divisors (18218340568).

20401401032 is a wasteful number, since it uses less digits than its factorization.

20401401032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42605 (or 42601 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20401401032 its reverse (23010410402), we get a palindrome (43411811434).

The spelling of 20401401032 in words is "twenty billion, four hundred one million, four hundred one thousand, thirty-two".