20776432 has 20 divisors (see below), whose sum is σ = 40857256. Its totient is φ = 10232640.

The previous prime is 20776423. The next prime is 20776433. The reversal of 20776432 is 23467702.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20776394 and 20776403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20776433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8619 + ... + 10762.

Almost surely, 2^20776432 is an apocalyptic number.

It is an amenable number.

20776432 is a deficient number, since it is larger than the sum of its proper divisors (20080824).

20776432 is a wasteful number, since it uses less digits than its factorization.

20776432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19456 (or 19450 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 20776432 is about 4558.1171551420. The cubic root of 20776432 is about 274.9098635723.

The spelling of 20776432 in words is "twenty million, seven hundred seventy-six thousand, four hundred thirty-two".