16745940 has 60 divisors (see below), whose sum is σ = 52537716. Its totient is φ = 4465152.

The previous prime is 16745893. The next prime is 16745951. The reversal of 16745940 is 4954761.

16745940 is a `hidden beast` number, since 1 + 67 + 4 + 594 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2862864 + 13883076 = 1692^2 + 3726^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16745895 and 16745904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3549 + ... + 6788.

Almost surely, 2^16745940 is an apocalyptic number.

16745940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16745940 is an abundant number, since it is smaller than the sum of its proper divisors (35791776).

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

16745940 is a wasteful number, since it uses less digits than its factorization.

16745940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10358 (or 10347 counting only the distinct ones).

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

The square root of 16745940 is about 4092.1803479319. The cubic root of 16745940 is about 255.8408230845.

The spelling of 16745940 in words is "sixteen million, seven hundred forty-five thousand, nine hundred forty".