20413344394 has 16 divisors (see below), whose sum is σ = 31091191200. Its totient is φ = 10049752944.

The previous prime is 20413344319. The next prime is 20413344433. The reversal of 20413344394 is 49344331402.

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, 270477 + ... + 337615.

It is an arithmetic number, because the mean of its divisors is an integer number (1943199450).

Almost surely, 2^20413344394 is an apocalyptic number.

20413344394 is a deficient number, since it is larger than the sum of its proper divisors (10677846806).

20413344394 is a wasteful number, since it uses less digits than its factorization.

20413344394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69477.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 20413344394 its reverse (49344331402), we get a palindrome (69757675796).

The spelling of 20413344394 in words is "twenty billion, four hundred thirteen million, three hundred forty-four thousand, three hundred ninety-four".