20674030 has 32 divisors (see below), whose sum is σ = 40471200. Its totient is φ = 7558272.

The previous prime is 20674021. The next prime is 20674037. The reversal of 20674030 is 3047602.

It is a junction number, because it is equal to n+sod(n) for n = 20673992 and 20674010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674037) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13441 + ... + 14899.

It is an arithmetic number, because the mean of its divisors is an integer number (1264725).

Almost surely, 2^20674030 is an apocalyptic number.

20674030 is a deficient number, since it is larger than the sum of its proper divisors (19797170).

20674030 is a wasteful number, since it uses less digits than its factorization.

20674030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20674030 is about 4546.8703522313. The cubic root of 20674030 is about 274.4574647957.

The spelling of 20674030 in words is "twenty million, six hundred seventy-four thousand, thirty".