16910040 has 128 divisors (see below), whose sum is σ = 59512320. Its totient is φ = 3763200.

The previous prime is 16910027. The next prime is 16910041. The reversal of 16910040 is 4001961.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 16909989 and 16910016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16910041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34195 + ... + 34685.

It is an arithmetic number, because the mean of its divisors is an integer number (464940).

Almost surely, 2^16910040 is an apocalyptic number.

16910040 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 16910040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29756160).

16910040 is an abundant number, since it is smaller than the sum of its proper divisors (42602280).

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

16910040 is a wasteful number, since it uses less digits than its factorization.

16910040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 16910040 is about 4112.1819025914. The cubic root of 16910040 is about 256.6738027663.

The spelling of 16910040 in words is "sixteen million, nine hundred ten thousand, forty".