20948334 has 16 divisors (see below), whose sum is σ = 45705600. Its totient is φ = 6347960.

The previous prime is 20948321. The next prime is 20948339. The reversal of 20948334 is 43384902.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 20948295 and 20948304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20948339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158634 + ... + 158765.

It is an arithmetic number, because the mean of its divisors is an integer number (2856600).

Almost surely, 2^20948334 is an apocalyptic number.

20948334 is an abundant number, since it is smaller than the sum of its proper divisors (24757266).

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

20948334 is a wasteful number, since it uses less digits than its factorization.

20948334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317415.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 20948334 is about 4576.9350006309. The cubic root of 20948334 is about 275.6659737730.

The spelling of 20948334 in words is "twenty million, nine hundred forty-eight thousand, three hundred thirty-four".