16949400 has 192 divisors, whose sum is σ = 59058720. Its totient is φ = 3993600.

The previous prime is 16949381. The next prime is 16949411. The reversal of 16949400 is 494961.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 319774 + ... + 319826.

Almost surely, 2^16949400 is an apocalyptic number.

16949400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16949400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29529360).

16949400 is an abundant number, since it is smaller than the sum of its proper divisors (42109320).

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

16949400 is a wasteful number, since it uses less digits than its factorization.

16949400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 16949400 is about 4116.9649014778. The cubic root of 16949400 is about 256.8727940682.

The spelling of 16949400 in words is "sixteen million, nine hundred forty-nine thousand, four hundred".