20148342 has 8 divisors (see below), whose sum is σ = 40296696. Its totient is φ = 6716112.

The previous prime is 20148329. The next prime is 20148347. The reversal of 20148342 is 24384102.

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

20148342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20148347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679023 + ... + 1679034.

It is an arithmetic number, because the mean of its divisors is an integer number (5037087).

Almost surely, 2^20148342 is an apocalyptic number.

20148342 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.

20148342 is a wasteful number, since it uses less digits than its factorization.

20148342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358062.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20148342 is about 4488.6904549100. The cubic root of 20148342 is about 272.1112128122. Note that the first 3 decimals are identical.

The spelling of 20148342 in words is "twenty million, one hundred forty-eight thousand, three hundred forty-two".