16776040 has 16 divisors (see below), whose sum is σ = 37746180. Its totient is φ = 6710400.

The previous prime is 16775989. The next prime is 16776047. The reversal of 16776040 is 4067761.

It can be written as a sum of positive squares in 2 ways, for example, as 16305444 + 470596 = 4038^2 + 686^2 .

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 16775993 and 16776011.

It is not an unprimeable number, because it can be changed into a prime (16776047) 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, 209661 + ... + 209740.

Almost surely, 2^16776040 is an apocalyptic number.

16776040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16776040 is an abundant number, since it is smaller than the sum of its proper divisors (20970140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16776040 is a wasteful number, since it uses less digits than its factorization.

16776040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419412 (or 419408 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 16776040 is about 4095.8564427968. The cubic root of 16776040 is about 255.9940184149.

The spelling of 16776040 in words is "sixteen million, seven hundred seventy-six thousand, forty".