16481974 has 8 divisors (see below), whose sum is σ = 25021080. Its totient is φ = 8141616.

The previous prime is 16481951. The next prime is 16481981. The reversal of 16481974 is 47918461.

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

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, 49479 + ... + 49810.

It is an arithmetic number, because the mean of its divisors is an integer number (3127635).

Almost surely, 2^16481974 is an apocalyptic number.

16481974 is a deficient number, since it is larger than the sum of its proper divisors (8539106).

16481974 is an equidigital number, since it uses as much as digits as its factorization.

16481974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99374.

The product of its digits is 48384, while the sum is 40.

The square root of 16481974 is about 4059.7997487561. The cubic root of 16481974 is about 254.4894256475.

The spelling of 16481974 in words is "sixteen million, four hundred eighty-one thousand, nine hundred seventy-four".