16780041 has 20 divisors (see below), whose sum is σ = 26159232. Its totient is φ = 10699128.

The previous prime is 16780031. The next prime is 16780051. The reversal of 16780041 is 14008761.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16780031) and next prime (16780051).

It is not a de Polignac number, because 16780041 - 2⁷ = 16779913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16779987 and 16780014.

It is not an unprimeable number, because it can be changed into a prime (16780031) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2641 + ... + 6366.

Almost surely, 2^16780041 is an apocalyptic number.

It is an amenable number.

16780041 is a deficient number, since it is larger than the sum of its proper divisors (9379191).

16780041 is an equidigital number, since it uses as much as digits as its factorization.

16780041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042 (or 9033 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 16780041 is about 4096.3448341174. The cubic root of 16780041 is about 256.0143678866.

It can be divided in two parts, 167 and 80041, that added together give a palindrome (80208).

The spelling of 16780041 in words is "sixteen million, seven hundred eighty thousand, forty-one".