16780034 has 16 divisors (see below), whose sum is σ = 25913088. Its totient is φ = 8145312.

The previous prime is 16780031. The next prime is 16780051. The reversal of 16780034 is 43008761.

It is a junction number, because it is equal to n+sod(n) for n = 16779979 and 16780006.

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

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12227 + ... + 13529.

It is an arithmetic number, because the mean of its divisors is an integer number (1619568).

Almost surely, 2^16780034 is an apocalyptic number.

16780034 is a deficient number, since it is larger than the sum of its proper divisors (9133054).

16780034 is a wasteful number, since it uses less digits than its factorization.

16780034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 16780034 is about 4096.3439796970. The cubic root of 16780034 is about 256.0143322868.

Adding to 16780034 its reverse (43008761), we get a palindrome (59788795).

The spelling of 16780034 in words is "sixteen million, seven hundred eighty thousand, thirty-four".