20434400410 has 32 divisors (see below), whose sum is σ = 37714218192. Its totient is φ = 7966955520.

The previous prime is 20434400387. The next prime is 20434400449. The reversal of 20434400410 is 1400443402.

It can be written as a sum of positive squares in 8 ways, for example, as 8001481401 + 12432919009 = 89451^2 + 111503^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427054 + ... + 472486.

Almost surely, 2^20434400410 is an apocalyptic number.

20434400410 is a deficient number, since it is larger than the sum of its proper divisors (17279817782).

20434400410 is a wasteful number, since it uses less digits than its factorization.

20434400410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46578.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20434400410 its reverse (1400443402), we get a palindrome (21834843812).

The spelling of 20434400410 in words is "twenty billion, four hundred thirty-four million, four hundred thousand, four hundred ten".