20675734 has 4 divisors (see below), whose sum is σ = 31013604. Its totient is φ = 10337866.

The previous prime is 20675719. The next prime is 20675737. The reversal of 20675734 is 43757602.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20675734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20675737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5168932 + ... + 5168935.

It is an arithmetic number, because the mean of its divisors is an integer number (7753401).

Almost surely, 2^20675734 is an apocalyptic number.

20675734 is a deficient number, since it is larger than the sum of its proper divisors (10337870).

20675734 is a wasteful number, since it uses less digits than its factorization.

20675734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10337869.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 20675734 is about 4547.0577300052. The cubic root of 20675734 is about 274.4650050555.

The spelling of 20675734 in words is "twenty million, six hundred seventy-five thousand, seven hundred thirty-four".