16740945 has 32 divisors (see below), whose sum is σ = 32054400. Its totient is φ = 8240832.

The previous prime is 16740943. The next prime is 16740953. The reversal of 16740945 is 54904761.

It is not a de Polignac number, because 16740945 - 2¹ = 16740943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16740943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3015 + ... + 6524.

It is an arithmetic number, because the mean of its divisors is an integer number (1001700).

Almost surely, 2^16740945 is an apocalyptic number.

16740945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16740945 is a deficient number, since it is larger than the sum of its proper divisors (15313455).

16740945 is a wasteful number, since it uses less digits than its factorization.

16740945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9566 (or 9560 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 16740945 is about 4091.5699920691. The cubic root of 16740945 is about 255.8153830476.

The spelling of 16740945 in words is "sixteen million, seven hundred forty thousand, nine hundred forty-five".