16214240 has 96 divisors (see below), whose sum is σ = 45287424. Its totient is φ = 5368320.

The previous prime is 16214207. The next prime is 16214267. The reversal of 16214240 is 4241261.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 34487 + ... + 34953.

It is an arithmetic number, because the mean of its divisors is an integer number (471744).

Almost surely, 2^16214240 is an apocalyptic number.

16214240 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 16214240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22643712).

16214240 is an abundant number, since it is smaller than the sum of its proper divisors (29073184).

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

16214240 is a wasteful number, since it uses less digits than its factorization.

16214240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 16214240 is about 4026.6909491542. The cubic root of 16214240 is about 253.1039166507.

The spelling of 16214240 in words is "sixteen million, two hundred fourteen thousand, two hundred forty".