16826340 has 96 divisors (see below), whose sum is σ = 50077440. Its totient is φ = 4212736.

The previous prime is 16826333. The next prime is 16826347. The reversal of 16826340 is 4362861.

It is an interprime number because it is at equal distance from previous prime (16826333) and next prime (16826347).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 16826298 and 16826307.

It is not an unprimeable number, because it can be changed into a prime (16826347) 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, 122752 + ... + 122888.

It is an arithmetic number, because the mean of its divisors is an integer number (521640).

Almost surely, 2^16826340 is an apocalyptic number.

16826340 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 16826340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25038720).

16826340 is an abundant number, since it is smaller than the sum of its proper divisors (33251100).

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

16826340 is a wasteful number, since it uses less digits than its factorization.

16826340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 16826340 is about 4101.9921989199. The cubic root of 16826340 is about 256.2496141180.

The spelling of 16826340 in words is "sixteen million, eight hundred twenty-six thousand, three hundred forty".