20013294 has 16 divisors (see below), whose sum is σ = 45744768. Its totient is φ = 5718072.

The previous prime is 20013293. The next prime is 20013299. The reversal of 20013294 is 49231002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20013294.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013293) 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, 238212 + ... + 238295.

It is an arithmetic number, because the mean of its divisors is an integer number (2859048).

Almost surely, 2^20013294 is an apocalyptic number.

20013294 is an abundant number, since it is smaller than the sum of its proper divisors (25731474).

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

20013294 is a wasteful number, since it uses less digits than its factorization.

20013294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476519.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 20013294 is about 4473.6220224780. The cubic root of 20013294 is about 271.5018907852.

Adding to 20013294 its reverse (49231002), we get a palindrome (69244296).

The spelling of 20013294 in words is "twenty million, thirteen thousand, two hundred ninety-four".