20411400442 has 16 divisors (see below), whose sum is σ = 31468689000. Its totient is φ = 9925597440.

The previous prime is 20411400431. The next prime is 20411400467. The reversal of 20411400442 is 24400411402.

It can be written as a sum of positive squares in 4 ways, for example, as 11794177201 + 8617223241 = 108601^2 + 92829^2 .

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, 929067 + ... + 950782.

Almost surely, 2^20411400442 is an apocalyptic number.

20411400442 is a deficient number, since it is larger than the sum of its proper divisors (11057288558).

20411400442 is a wasteful number, since it uses less digits than its factorization.

20411400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880001.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20411400442 its reverse (24400411402), we get a palindrome (44811811844).

The spelling of 20411400442 in words is "twenty billion, four hundred eleven million, four hundred thousand, four hundred forty-two".