20336464 has 10 divisors (see below), whose sum is σ = 39401930. Its totient is φ = 10168224.

The previous prime is 20336461. The next prime is 20336467. The reversal of 20336464 is 46463302.

It is an interprime number because it is at equal distance from previous prime (20336461) and next prime (20336467).

It can be written as a sum of positive squares in only one way, i.e., 20322064 + 14400 = 4508^2 + 120^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20336461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635499 + ... + 635530.

It is an arithmetic number, because the mean of its divisors is an integer number (3940193).

Almost surely, 2^20336464 is an apocalyptic number.

It is an amenable number.

20336464 is a deficient number, since it is larger than the sum of its proper divisors (19065466).

20336464 is a wasteful number, since it uses less digits than its factorization.

20336464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271037 (or 1271031 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 20336464 is about 4509.5968777708. The cubic root of 20336464 is about 272.9554776290.

Adding to 20336464 its reverse (46463302), we get a palindrome (66799766).

The spelling of 20336464 in words is "twenty million, three hundred thirty-six thousand, four hundred sixty-four".