20148284 has 24 divisors (see below), whose sum is σ = 39972240. Its totient is φ = 8809344.

The previous prime is 20148269. The next prime is 20148329. The reversal of 20148284 is 48284102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9209 + ... + 11184.

It is an arithmetic number, because the mean of its divisors is an integer number (1665510).

Almost surely, 2^20148284 is an apocalyptic number.

It is an amenable number.

20148284 is a deficient number, since it is larger than the sum of its proper divisors (19823956).

20148284 is a wasteful number, since it uses less digits than its factorization.

20148284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20429 (or 20427 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 20148284 is about 4488.6839942237. The cubic root of 20148284 is about 272.1109517078.

It can be divided in two parts, 2014 and 8284, that multiplied together give a triangular number (16683976 = T₅₇₇₆).

The spelling of 20148284 in words is "twenty million, one hundred forty-eight thousand, two hundred eighty-four".