20146748 has 12 divisors (see below), whose sum is σ = 35452872. Its totient is φ = 10017360.

The previous prime is 20146741. The next prime is 20146757. The reversal of 20146748 is 84764102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146741) 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, 13190 + ... + 14637.

It is an arithmetic number, because the mean of its divisors is an integer number (2954406).

Almost surely, 2^20146748 is an apocalyptic number.

It is an amenable number.

20146748 is a deficient number, since it is larger than the sum of its proper divisors (15306124).

20146748 is a wasteful number, since it uses less digits than its factorization.

20146748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28012 (or 28010 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 20146748 is about 4488.5128940441. The cubic root of 20146748 is about 272.1040367592.

The spelling of 20146748 in words is "twenty million, one hundred forty-six thousand, seven hundred forty-eight".