20435402010 has 32 divisors (see below), whose sum is σ = 49049753472. Its totient is φ = 5448908480.

The previous prime is 20435401967. The next prime is 20435402017. The reversal of 20435402010 is 1020453402.

It is not an unprimeable number, because it can be changed into a prime (20435402017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352480 + ... + 406340.

It is an arithmetic number, because the mean of its divisors is an integer number (1532804796).

Almost surely, 2^20435402010 is an apocalyptic number.

20435402010 is an abundant number, since it is smaller than the sum of its proper divisors (28614351462).

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

20435402010 is a wasteful number, since it uses less digits than its factorization.

20435402010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66518.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 20435402010 its reverse (1020453402), we get a palindrome (21455855412).

The spelling of 20435402010 in words is "twenty billion, four hundred thirty-five million, four hundred two thousand, ten".