20134398 has 8 divisors (see below), whose sum is σ = 40268808. Its totient is φ = 6711464.

The previous prime is 20134391. The next prime is 20134417. The reversal of 20134398 is 89343102.

It is a sphenic number, since it is the product of 3 distinct primes.

20134398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677861 + ... + 1677872.

It is an arithmetic number, because the mean of its divisors is an integer number (5033601).

Almost surely, 2^20134398 is an apocalyptic number.

20134398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20134398 is a wasteful number, since it uses less digits than its factorization.

20134398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355738.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 20134398 is about 4487.1369491024. The cubic root of 20134398 is about 272.0484252738.

The spelling of 20134398 in words is "twenty million, one hundred thirty-four thousand, three hundred ninety-eight".