20249358 has 8 divisors (see below), whose sum is σ = 40498728. Its totient is φ = 6749784.

The previous prime is 20249357. The next prime is 20249387. The reversal of 20249358 is 85394202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

20249358 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20249353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687441 + ... + 1687452.

It is an arithmetic number, because the mean of its divisors is an integer number (5062341).

Almost surely, 2^20249358 is an apocalyptic number.

20249358 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20249358 is a wasteful number, since it uses less digits than its factorization.

20249358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374898.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 20249358 is about 4499.9286661013. The cubic root of 20249358 is about 272.5652084217.

The spelling of 20249358 in words is "twenty million, two hundred forty-nine thousand, three hundred fifty-eight".