16694240 has 48 divisors (see below), whose sum is σ = 39862368. Its totient is φ = 6606336.

The previous prime is 16694239. The next prime is 16694243. The reversal of 16694240 is 4249661.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 16694197 and 16694206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16694243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15974 + ... + 16986.

It is an arithmetic number, because the mean of its divisors is an integer number (830466).

Almost surely, 2^16694240 is an apocalyptic number.

16694240 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 16694240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19931184).

16694240 is an abundant number, since it is smaller than the sum of its proper divisors (23168128).

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

16694240 is a wasteful number, since it uses less digits than its factorization.

16694240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 16694240 is about 4085.8585389120. The cubic root of 16694240 is about 255.5772645564.

The spelling of 16694240 in words is "sixteen million, six hundred ninety-four thousand, two hundred forty".