20674049 has 4 divisors (see below), whose sum is σ = 22553520. Its totient is φ = 18794580.

The previous prime is 20674037. The next prime is 20674061. The reversal of 20674049 is 94047602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (20674037) and next prime (20674061).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20674049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20674649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939719 + ... + 939740.

It is an arithmetic number, because the mean of its divisors is an integer number (5638380).

Almost surely, 2^20674049 is an apocalyptic number.

It is an amenable number.

20674049 is a deficient number, since it is larger than the sum of its proper divisors (1879471).

20674049 is a wasteful number, since it uses less digits than its factorization.

20674049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879470.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20674049 is about 4546.8724415800. The cubic root of 20674049 is about 274.4575488736.

It can be divided in two parts, 2067 and 4049, that added together give a palindrome (6116).

The spelling of 20674049 in words is "twenty million, six hundred seventy-four thousand, forty-nine".