16913040 has 80 divisors (see below), whose sum is σ = 55204800. Its totient is φ = 4271616.

The previous prime is 16913009. The next prime is 16913047. The reversal of 16913040 is 4031961.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16913040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16913047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2706 + ... + 6414.

It is an arithmetic number, because the mean of its divisors is an integer number (690060).

Almost surely, 2^16913040 is an apocalyptic number.

16913040 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 16913040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27602400).

16913040 is an abundant number, since it is smaller than the sum of its proper divisors (38291760).

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

16913040 is a wasteful number, since it uses less digits than its factorization.

16913040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744 (or 3738 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 16913040 is about 4112.5466562703. The cubic root of 16913040 is about 256.6889806503.

The spelling of 16913040 in words is "sixteen million, nine hundred thirteen thousand, forty".