16374021 has 8 divisors (see below), whose sum is σ = 21876960. Its totient is φ = 10893552.

The previous prime is 16373993. The next prime is 16374037. The reversal of 16374021 is 12047361.

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

It is not a de Polignac number, because 16374021 - 2⁶ = 16373957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16373982 and 16374000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16374521) 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, 3835 + ... + 6888.

It is an arithmetic number, because the mean of its divisors is an integer number (2734620).

Almost surely, 2^16374021 is an apocalyptic number.

It is an amenable number.

16374021 is a deficient number, since it is larger than the sum of its proper divisors (5502939).

16374021 is a wasteful number, since it uses less digits than its factorization.

16374021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11235.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 16374021 is about 4046.4825466076. The cubic root of 16374021 is about 253.9325931450.

The spelling of 16374021 in words is "sixteen million, three hundred seventy-four thousand, twenty-one".