16402648 has 8 divisors (see below), whose sum is σ = 30754980. Its totient is φ = 8201320.

The previous prime is 16402621. The next prime is 16402667. The reversal of 16402648 is 84620461.

16402648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×16402648² = 538093722823808, which contains 22 as substring.

It is a nialpdrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025158 + ... + 1025173.

Almost surely, 2^16402648 is an apocalyptic number.

It is an amenable number.

16402648 is a deficient number, since it is larger than the sum of its proper divisors (14352332).

16402648 is a wasteful number, since it uses less digits than its factorization.

16402648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050337 (or 2050333 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 16402648 is about 4050.0182715637. The cubic root of 16402648 is about 254.0804919840.

The spelling of 16402648 in words is "sixteen million, four hundred two thousand, six hundred forty-eight".