20672353 has 8 divisors (see below), whose sum is σ = 22412096. Its totient is φ = 18954000.

The previous prime is 20672321. The next prime is 20672371. The reversal of 20672353 is 35327602.

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

It is not a de Polignac number, because 20672353 - 2⁵ = 20672321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20678353) 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, 3303 + ... + 7228.

It is an arithmetic number, because the mean of its divisors is an integer number (2801512).

Almost surely, 2^20672353 is an apocalyptic number.

It is an amenable number.

20672353 is a deficient number, since it is larger than the sum of its proper divisors (1739743).

20672353 is a wasteful number, since it uses less digits than its factorization.

20672353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10695.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 20672353 is about 4546.6859359318. The cubic root of 20672353 is about 274.4500436073.

Adding to 20672353 its reverse (35327602), we get a palindrome (55999955).

It can be divided in two parts, 20672 and 353, that added together give a square (21025 = 145²).

The spelling of 20672353 in words is "twenty million, six hundred seventy-two thousand, three hundred fifty-three".