20130354 has 24 divisors (see below), whose sum is σ = 44440812. Its totient is φ = 6583200.

The previous prime is 20130349. The next prime is 20130371. The reversal of 20130354 is 45303102.

It can be written as a sum of positive squares in 2 ways, for example, as 20115225 + 15129 = 4485^2 + 123^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9597 + ... + 11504.

Almost surely, 2^20130354 is an apocalyptic number.

20130354 is an abundant number, since it is smaller than the sum of its proper divisors (24310458).

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

20130354 is a wasteful number, since it uses less digits than its factorization.

20130354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21162 (or 21159 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 20130354 is about 4486.6863050586. The cubic root of 20130354 is about 272.0302103844.

Adding to 20130354 its reverse (45303102), we get a palindrome (65433456).

The spelling of 20130354 in words is "twenty million, one hundred thirty thousand, three hundred fifty-four".