20434670406 has 24 divisors (see below), whose sum is σ = 44835566880. Its totient is φ = 6725334096.

The previous prime is 20434670359. The next prime is 20434670453. The reversal of 20434670406 is 60407643402.

20434670406 is a `hidden beast` number, since 204 + 3 + 46 + 7 + 0 + 406 = 666.

It is an interprime number because it is at equal distance from previous prime (20434670359) and next prime (20434670453).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7183765 + ... + 7186608.

It is an arithmetic number, because the mean of its divisors is an integer number (1868148620).

Almost surely, 2^20434670406 is an apocalyptic number.

20434670406 is an abundant number, since it is smaller than the sum of its proper divisors (24400896474).

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

20434670406 is a wasteful number, since it uses less digits than its factorization.

20434670406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14370460 (or 14370457 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 20434670406 in words is "twenty billion, four hundred thirty-four million, six hundred seventy thousand, four hundred six".