20342400933 has 4 divisors (see below), whose sum is σ = 27123201248. Its totient is φ = 13561600620.

The previous prime is 20342400931. The next prime is 20342400941. The reversal of 20342400933 is 33900424302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20342400933 - 2¹ = 20342400931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20342400933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342400931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390400153 + ... + 3390400158.

It is an arithmetic number, because the mean of its divisors is an integer number (6780800312).

Almost surely, 2^20342400933 is an apocalyptic number.

It is an amenable number.

20342400933 is a deficient number, since it is larger than the sum of its proper divisors (6780800315).

20342400933 is an equidigital number, since it uses as much as digits as its factorization.

20342400933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780800314.

The product of its (nonzero) digits is 15552, while the sum is 30.

The spelling of 20342400933 in words is "twenty billion, three hundred forty-two million, four hundred thousand, nine hundred thirty-three".