20493354 has 32 divisors (see below), whose sum is σ = 46995840. Its totient is φ = 5836032.

The previous prime is 20493353. The next prime is 20493371. The reversal of 20493354 is 45339402.

It is not an unprimeable number, because it can be changed into a prime (20493353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16582 + ... + 17774.

It is an arithmetic number, because the mean of its divisors is an integer number (1468620).

Almost surely, 2^20493354 is an apocalyptic number.

20493354 is an abundant number, since it is smaller than the sum of its proper divisors (26502486).

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

20493354 is a wasteful number, since it uses less digits than its factorization.

20493354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 20493354 is about 4526.9585816528. The cubic root of 20493354 is about 273.6556047427.

The spelling of 20493354 in words is "twenty million, four hundred ninety-three thousand, three hundred fifty-four".