16893540 has 72 divisors (see below), whose sum is σ = 51717120. Its totient is φ = 4463424.

The previous prime is 16893511. The next prime is 16893551. The reversal of 16893540 is 4539861.

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 = 16893495 and 16893504.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22491 + ... + 23229.

Almost surely, 2^16893540 is an apocalyptic number.

16893540 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 16893540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25858560).

16893540 is an abundant number, since it is smaller than the sum of its proper divisors (34823580).

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

16893540 is a wasteful number, since it uses less digits than its factorization.

16893540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 16893540 is about 4110.1751787485. The cubic root of 16893540 is about 256.5902923002.

The spelling of 16893540 in words is "sixteen million, eight hundred ninety-three thousand, five hundred forty".