20492396 has 6 divisors (see below), whose sum is σ = 35861700. Its totient is φ = 10246196.

The previous prime is 20492387. The next prime is 20492399. The reversal of 20492396 is 69329402.

It is not an unprimeable number, because it can be changed into a prime (20492399) 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, 2561546 + ... + 2561553.

It is an arithmetic number, because the mean of its divisors is an integer number (5976950).

Almost surely, 2^20492396 is an apocalyptic number.

It is an amenable number.

20492396 is a deficient number, since it is larger than the sum of its proper divisors (15369304).

20492396 is a wasteful number, since it uses less digits than its factorization.

20492396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123103 (or 5123101 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 20492396 is about 4526.8527698612. The cubic root of 20492396 is about 273.6513404960.

The spelling of 20492396 in words is "twenty million, four hundred ninety-two thousand, three hundred ninety-six".