20493054 has 16 divisors (see below), whose sum is σ = 45540240. Its totient is φ = 6831000.

The previous prime is 20493047. The next prime is 20493059. The reversal of 20493054 is 45039402.

20493054 is nontrivially palindromic in base 12.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20493059) 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, 189697 + ... + 189804.

It is an arithmetic number, because the mean of its divisors is an integer number (2846265).

Almost surely, 2^20493054 is an apocalyptic number.

20493054 is an abundant number, since it is smaller than the sum of its proper divisors (25047186).

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

20493054 is a wasteful number, since it uses less digits than its factorization.

20493054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379512 (or 379506 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20493054 is about 4526.9254467022. The cubic root of 20493054 is about 273.6542693979.

The spelling of 20493054 in words is "twenty million, four hundred ninety-three thousand, fifty-four".