20613734 has 8 divisors (see below), whose sum is σ = 31674888. Its totient is φ = 10055440.

The previous prime is 20613731. The next prime is 20613737. The reversal of 20613734 is 43731602.

It is an interprime number because it is at equal distance from previous prime (20613731) and next prime (20613737).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20613731) 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, 125612 + ... + 125775.

It is an arithmetic number, because the mean of its divisors is an integer number (3959361).

Almost surely, 2^20613734 is an apocalyptic number.

20613734 is a deficient number, since it is larger than the sum of its proper divisors (11061154).

20613734 is a wasteful number, since it uses less digits than its factorization.

20613734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251430.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 20613734 is about 4540.2350159436. The cubic root of 20613734 is about 274.1903857348.

The spelling of 20613734 in words is "twenty million, six hundred thirteen thousand, seven hundred thirty-four".