16249356 has 48 divisors (see below), whose sum is σ = 43120000. Its totient is φ = 5288976.

The previous prime is 16249349. The next prime is 16249381. The reversal of 16249356 is 65394261.

It is a happy number.

16249356 is a `hidden beast` number, since 162 + 493 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 16249356.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2895 + ... + 6393.

Almost surely, 2^16249356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16249356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21560000).

16249356 is an abundant number, since it is smaller than the sum of its proper divisors (26870644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16249356 is a wasteful number, since it uses less digits than its factorization.

16249356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555 (or 3547 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 16249356 is about 4031.0489949888. The cubic root of 16249356 is about 253.2865048870.

The spelling of 16249356 in words is "sixteen million, two hundred forty-nine thousand, three hundred fifty-six".