20413146438 has 24 divisors (see below), whose sum is σ = 46151462448. Its totient is φ = 6508539312.

The previous prime is 20413146431. The next prime is 20413146443. The reversal of 20413146438 is 83464131402.

20413146438 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 3 + 1 + 4 + 643 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413146431) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 24653145 + ... + 24653972.

It is an arithmetic number, because the mean of its divisors is an integer number (1922977602).

Almost surely, 2^20413146438 is an apocalyptic number.

20413146438 is an abundant number, since it is smaller than the sum of its proper divisors (25738316010).

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

20413146438 is a wasteful number, since it uses less digits than its factorization.

20413146438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49307148 (or 49307145 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 20413146438 in words is "twenty billion, four hundred thirteen million, one hundred forty-six thousand, four hundred thirty-eight".