20933046 has 32 divisors (see below), whose sum is σ = 47779680. Its totient is φ = 6788448.

The previous prime is 20933021. The next prime is 20933047. The reversal of 20933046 is 64033902.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20933047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3241 + ... + 7236.

It is an arithmetic number, because the mean of its divisors is an integer number (1493115).

Almost surely, 2^20933046 is an apocalyptic number.

20933046 is an abundant number, since it is smaller than the sum of its proper divisors (26846634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20933046 is a wasteful number, since it uses less digits than its factorization.

20933046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10525 (or 10519 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 20933046 is about 4575.2645825132. The cubic root of 20933046 is about 275.5988975235.

Adding to 20933046 its reverse (64033902), we get a palindrome (84966948).

The spelling of 20933046 in words is "twenty million, nine hundred thirty-three thousand, forty-six".