20143354 has 64 divisors (see below), whose sum is σ = 40476672. Its totient is φ = 7347120.

The previous prime is 20143337. The next prime is 20143379. The reversal of 20143354 is 45334102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428559 + ... + 428605.

It is an arithmetic number, because the mean of its divisors is an integer number (632448).

Almost surely, 2^20143354 is an apocalyptic number.

20143354 is an abundant number, since it is smaller than the sum of its proper divisors (20333318).

20143354 is a wasteful number, since it uses less digits than its factorization.

20143354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20143354 is about 4488.1348018971. The cubic root of 20143354 is about 272.0887559975.

Adding to 20143354 its reverse (45334102), we get a palindrome (65477456).

The spelling of 20143354 in words is "twenty million, one hundred forty-three thousand, three hundred fifty-four".