16345982 has 4 divisors (see below), whose sum is σ = 24518976. Its totient is φ = 8172990.

The previous prime is 16345981. The next prime is 16345999. The reversal of 16345982 is 28954361.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×16345982² = 534382255088648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16345981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4086494 + ... + 4086497.

It is an arithmetic number, because the mean of its divisors is an integer number (6129744).

Almost surely, 2^16345982 is an apocalyptic number.

16345982 is a deficient number, since it is larger than the sum of its proper divisors (8172994).

16345982 is an equidigital number, since it uses as much as digits as its factorization.

16345982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8172993.

The product of its digits is 51840, while the sum is 38.

The square root of 16345982 is about 4043.0164481486. The cubic root of 16345982 is about 253.7875649532.

The spelling of 16345982 in words is "sixteen million, three hundred forty-five thousand, nine hundred eighty-two".