20293772 has 6 divisors (see below), whose sum is σ = 35514108. Its totient is φ = 10146884.

The previous prime is 20293771. The next prime is 20293787. The reversal of 20293772 is 27739202.

It is not an unprimeable number, because it can be changed into a prime (20293771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2536718 + ... + 2536725.

It is an arithmetic number, because the mean of its divisors is an integer number (5919018).

Almost surely, 2^20293772 is an apocalyptic number.

It is an amenable number.

20293772 is a deficient number, since it is larger than the sum of its proper divisors (15220336).

20293772 is a wasteful number, since it uses less digits than its factorization.

20293772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073447 (or 5073445 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 20293772 is about 4504.8609301509. The cubic root of 20293772 is about 272.7643401874.

The spelling of 20293772 in words is "twenty million, two hundred ninety-three thousand, seven hundred seventy-two".