20672435 has 8 divisors (see below), whose sum is σ = 28350816. Its totient is φ = 14175360.

The previous prime is 20672419. The next prime is 20672441. The reversal of 20672435 is 53427602.

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

It is not a de Polignac number, because 20672435 - 2⁴ = 20672419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20672398 and 20672407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295286 + ... + 295355.

It is an arithmetic number, because the mean of its divisors is an integer number (3543852).

Almost surely, 2^20672435 is an apocalyptic number.

20672435 is a deficient number, since it is larger than the sum of its proper divisors (7678381).

20672435 is an equidigital number, since it uses as much as digits as its factorization.

20672435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590653.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 20672435 is about 4546.6949534799. The cubic root of 20672435 is about 274.4504064893.

The spelling of 20672435 in words is "twenty million, six hundred seventy-two thousand, four hundred thirty-five".