20001496 has 8 divisors (see below), whose sum is σ = 37502820. Its totient is φ = 10000744.

The previous prime is 20001491. The next prime is 20001517. The reversal of 20001496 is 69410002.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001491) 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, 1250086 + ... + 1250101.

Almost surely, 2^20001496 is an apocalyptic number.

It is an amenable number.

20001496 is a deficient number, since it is larger than the sum of its proper divisors (17501324).

20001496 is a wasteful number, since it uses less digits than its factorization.

20001496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500193 (or 2500189 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20001496 is about 4472.3032097567. The cubic root of 20001496 is about 271.4485294387.

Adding to 20001496 its reverse (69410002), we get a palindrome (89411498).

The spelling of 20001496 in words is "twenty million, one thousand, four hundred ninety-six".