20464376 has 8 divisors (see below), whose sum is σ = 38370720. Its totient is φ = 10232184.

The previous prime is 20464373. The next prime is 20464391. The reversal of 20464376 is 67346402.

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 (20464373) 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, 1279016 + ... + 1279031.

It is an arithmetic number, because the mean of its divisors is an integer number (4796340).

Almost surely, 2^20464376 is an apocalyptic number.

It is an amenable number.

20464376 is a deficient number, since it is larger than the sum of its proper divisors (17906344).

20464376 is a wasteful number, since it uses less digits than its factorization.

20464376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558053 (or 2558049 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 20464376 is about 4523.7568458086. The cubic root of 20464376 is about 273.5265591218.

The spelling of 20464376 in words is "twenty million, four hundred sixty-four thousand, three hundred seventy-six".