20046736 has 10 divisors (see below), whose sum is σ = 38840582. Its totient is φ = 10023360.

The previous prime is 20046727. The next prime is 20046737. The reversal of 20046736 is 63764002.

It can be written as a sum of positive squares in only one way, i.e., 16646400 + 3400336 = 4080^2 + 1844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20046737) 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, 626445 + ... + 626476.

Almost surely, 2^20046736 is an apocalyptic number.

It is an amenable number.

20046736 is a deficient number, since it is larger than the sum of its proper divisors (18793846).

20046736 is a wasteful number, since it uses less digits than its factorization.

20046736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252929 (or 1252923 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 20046736 is about 4477.3581496235. The cubic root of 20046736 is about 271.6530322154.

The spelling of 20046736 in words is "twenty million, forty-six thousand, seven hundred thirty-six".