20674844 has 6 divisors (see below), whose sum is σ = 36180984. Its totient is φ = 10337420.

The previous prime is 20674837. The next prime is 20674847. The reversal of 20674844 is 44847602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2584352 + ... + 2584359.

It is an arithmetic number, because the mean of its divisors is an integer number (6030164).

Almost surely, 2^20674844 is an apocalyptic number.

It is an amenable number.

20674844 is a deficient number, since it is larger than the sum of its proper divisors (15506140).

20674844 is a wasteful number, since it uses less digits than its factorization.

20674844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5168715 (or 5168713 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 20674844 is about 4546.9598634692. The cubic root of 20674844 is about 274.4610668259.

The spelling of 20674844 in words is "twenty million, six hundred seventy-four thousand, eight hundred forty-four".