20460158 has 4 divisors (see below), whose sum is σ = 30690240. Its totient is φ = 10230078.

The previous prime is 20460157. The next prime is 20460199. The reversal of 20460158 is 85106402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460151) 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 as a sum of consecutive naturals, namely, 5115038 + ... + 5115041.

It is an arithmetic number, because the mean of its divisors is an integer number (7672560).

Almost surely, 2^20460158 is an apocalyptic number.

20460158 is a deficient number, since it is larger than the sum of its proper divisors (10230082).

20460158 is a wasteful number, since it uses less digits than its factorization.

20460158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230081.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 20460158 is about 4523.2906163544. The cubic root of 20460158 is about 273.5077652545.

The spelling of 20460158 in words is "twenty million, four hundred sixty thousand, one hundred fifty-eight".