20134378 has 8 divisors (see below), whose sum is σ = 32947200. Its totient is φ = 9151980.

The previous prime is 20134369. The next prime is 20134379. The reversal of 20134378 is 87343102.

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

It is not an unprimeable number, because it can be changed into a prime (20134379) 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, 457578 + ... + 457621.

It is an arithmetic number, because the mean of its divisors is an integer number (4118400).

Almost surely, 2^20134378 is an apocalyptic number.

20134378 is a deficient number, since it is larger than the sum of its proper divisors (12812822).

20134378 is a wasteful number, since it uses less digits than its factorization.

20134378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915212.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20134378 is about 4487.1347205093. The cubic root of 20134378 is about 272.0483351962.

The spelling of 20134378 in words is "twenty million, one hundred thirty-four thousand, three hundred seventy-eight".