20948466 has 32 divisors (see below), whose sum is σ = 52236288. Its totient is φ = 5441040.

The previous prime is 20948429. The next prime is 20948483. The reversal of 20948466 is 66484902.

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, 22210 + ... + 23133.

It is an arithmetic number, because the mean of its divisors is an integer number (1632384).

Almost surely, 2^20948466 is an apocalyptic number.

20948466 is an abundant number, since it is smaller than the sum of its proper divisors (31287822).

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

20948466 is a wasteful number, since it uses less digits than its factorization.

20948466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45366.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 20948466 is about 4576.9494207387. The cubic root of 20948466 is about 275.6665527822. Note that the first 3 decimals are identical.

The spelling of 20948466 in words is "twenty million, nine hundred forty-eight thousand, four hundred sixty-six".