20145848 has 8 divisors (see below), whose sum is σ = 37773480. Its totient is φ = 10072920.

The previous prime is 20145847. The next prime is 20145857. The reversal of 20145848 is 84854102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20145847) 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, 1259108 + ... + 1259123.

It is an arithmetic number, because the mean of its divisors is an integer number (4721685).

Almost surely, 2^20145848 is an apocalyptic number.

It is an amenable number.

20145848 is a deficient number, since it is larger than the sum of its proper divisors (17627632).

20145848 is a wasteful number, since it uses less digits than its factorization.

20145848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518237 (or 2518233 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 20145848 is about 4488.4126370021. The cubic root of 20145848 is about 272.0999848682.

The spelling of 20145848 in words is "twenty million, one hundred forty-five thousand, eight hundred forty-eight".