20494360 has 32 divisors (see below), whose sum is σ = 46675440. Its totient is φ = 8097664.

The previous prime is 20494351. The next prime is 20494361. The reversal of 20494360 is 6349402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20494361) 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, 234 + ... + 6406.

Almost surely, 2^20494360 is an apocalyptic number.

20494360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20494360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23337720).

20494360 is an abundant number, since it is smaller than the sum of its proper divisors (26181080).

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

20494360 is a wasteful number, since it uses less digits than its factorization.

20494360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6267 (or 6263 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 20494360 is about 4527.0696924169. The cubic root of 20494360 is about 273.6600825039.

The spelling of 20494360 in words is "twenty million, four hundred ninety-four thousand, three hundred sixty".