16343974 has 8 divisors (see below), whose sum is σ = 24918048. Its totient is φ = 8037960.

The previous prime is 16343969. The next prime is 16343989. The reversal of 16343974 is 47934361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16343974² = 534250972225352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66862 + ... + 67105.

It is an arithmetic number, because the mean of its divisors is an integer number (3114756).

Almost surely, 2^16343974 is an apocalyptic number.

16343974 is a deficient number, since it is larger than the sum of its proper divisors (8574074).

16343974 is a wasteful number, since it uses less digits than its factorization.

16343974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134030.

The product of its digits is 54432, while the sum is 37.

The square root of 16343974 is about 4042.7681110843. The cubic root of 16343974 is about 253.7771724645. Note that the first 3 decimals are identical.

The spelling of 16343974 in words is "sixteen million, three hundred forty-three thousand, nine hundred seventy-four".