20293534 has 8 divisors (see below), whose sum is σ = 30479760. Its totient is φ = 10133616.

The previous prime is 20293531. The next prime is 20293543. The reversal of 20293534 is 43539202.

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 (20293531) 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, 4519 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (3809970).

Almost surely, 2^20293534 is an apocalyptic number.

20293534 is a deficient number, since it is larger than the sum of its proper divisors (10186226).

20293534 is a wasteful number, since it uses less digits than its factorization.

20293534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13154.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 20293534 is about 4504.8345141636. The cubic root of 20293534 is about 272.7632738805.

The spelling of 20293534 in words is "twenty million, two hundred ninety-three thousand, five hundred thirty-four".