16259340 has 48 divisors (see below), whose sum is σ = 46394208. Its totient is φ = 4253184.

The previous prime is 16259339. The next prime is 16259351. The reversal of 16259340 is 4395261.

It is a super-2 number, since 2×16259340² = 528732274471200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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 = 16259298 and 16259307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624 + ... + 5736.

It is an arithmetic number, because the mean of its divisors is an integer number (966546).

Almost surely, 2^16259340 is an apocalyptic number.

16259340 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 16259340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23197104).

16259340 is an abundant number, since it is smaller than the sum of its proper divisors (30134868).

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

16259340 is a wasteful number, since it uses less digits than its factorization.

16259340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5178 (or 5176 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 16259340 is about 4032.2871921529. The cubic root of 16259340 is about 253.3383693982.

The spelling of 16259340 in words is "sixteen million, two hundred fifty-nine thousand, three hundred forty".