20214100434 has 32 divisors (see below), whose sum is σ = 45624306240. Its totient is φ = 5914260800.

The previous prime is 20214100409. The next prime is 20214100447. The reversal of 20214100434 is 43400141202.

It is a self number, because there is not a number n which added to its sum of digits gives 20214100434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5278677 + ... + 5282504.

It is an arithmetic number, because the mean of its divisors is an integer number (1425759570).

Almost surely, 2^20214100434 is an apocalyptic number.

20214100434 is an abundant number, since it is smaller than the sum of its proper divisors (25410205806).

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

20214100434 is a wasteful number, since it uses less digits than its factorization.

20214100434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10561226.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20214100434 its reverse (43400141202), we get a palindrome (63614241636).

The spelling of 20214100434 in words is "twenty billion, two hundred fourteen million, one hundred thousand, four hundred thirty-four".