20514468 has 48 divisors (see below), whose sum is σ = 52073280. Its totient is φ = 6248064.

The previous prime is 20514457. The next prime is 20514497. The reversal of 20514468 is 86441502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16078 + ... + 17306.

It is an arithmetic number, because the mean of its divisors is an integer number (1084860).

Almost surely, 2^20514468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20514468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26036640).

20514468 is an abundant number, since it is smaller than the sum of its proper divisors (31558812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20514468 is a wasteful number, since it uses less digits than its factorization.

20514468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356 (or 1354 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 20514468 is about 4529.2900105866. The cubic root of 20514468 is about 273.7495535949.

The spelling of 20514468 in words is "twenty million, five hundred fourteen thousand, four hundred sixty-eight".