20040392352 has 48 divisors (see below), whose sum is σ = 52765044192. Its totient is φ = 6659938560.

The previous prime is 20040392347. The next prime is 20040392371. The reversal of 20040392352 is 25329304002.

It is a tau number, because it is divible by the number of its divisors (48).

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, 283563 + ... + 347114.

It is an arithmetic number, because the mean of its divisors is an integer number (1099271754).

Almost surely, 2^20040392352 is an apocalyptic number.

It is an amenable number.

20040392352 is an abundant number, since it is smaller than the sum of its proper divisors (32724651840).

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

20040392352 is a wasteful number, since it uses less digits than its factorization.

20040392352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631021 (or 631013 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 20040392352 its reverse (25329304002), we get a palindrome (45369696354).

The spelling of 20040392352 in words is "twenty billion, forty million, three hundred ninety-two thousand, three hundred fifty-two".