16945740 has 96 divisors (see below), whose sum is σ = 60264960. Its totient is φ = 3872448.

The previous prime is 16945729. The next prime is 16945759. The reversal of 16945740 is 4754961.

16945740 is a `hidden beast` number, since 169 + 457 + 40 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 = 16945695 and 16945704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1539 + ... + 6021.

It is an arithmetic number, because the mean of its divisors is an integer number (627760).

Almost surely, 2^16945740 is an apocalyptic number.

16945740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16945740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30132480).

16945740 is an abundant number, since it is smaller than the sum of its proper divisors (43319220).

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

16945740 is a wasteful number, since it uses less digits than its factorization.

16945740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4508 (or 4500 counting only the distinct ones).

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

The square root of 16945740 is about 4116.5203752684. The cubic root of 16945740 is about 256.8543033035.

The spelling of 16945740 in words is "sixteen million, nine hundred forty-five thousand, seven hundred forty".