16043340 has 24 divisors (see below), whose sum is σ = 44921520. Its totient is φ = 4278208.

The previous prime is 16043333. The next prime is 16043347. The reversal of 16043340 is 4334061.

It is an interprime number because it is at equal distance from previous prime (16043333) and next prime (16043347).

It is not an unprimeable number, because it can be changed into a prime (16043347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133635 + ... + 133754.

It is an arithmetic number, because the mean of its divisors is an integer number (1871730).

Almost surely, 2^16043340 is an apocalyptic number.

16043340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16043340 is an abundant number, since it is smaller than the sum of its proper divisors (28878180).

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

16043340 is a wasteful number, since it uses less digits than its factorization.

16043340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267401 (or 267399 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 16043340 is about 4005.4138362971. The cubic root of 16043340 is about 252.2115255982.

The spelling of 16043340 in words is "sixteen million, forty-three thousand, three hundred forty".