14540240 has 160 divisors (see below), whose sum is σ = 41997312. Its totient is φ = 4608000.

The previous prime is 14540237. The next prime is 14540261. The reversal of 14540240 is 4204541.

14540240 = T₁₆₅ + T₁₆₆ + ... + T₄₅₀.

It is a super-2 number, since 2×14540240² = 422837158515200, which contains 22 as substring.

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

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 354620 + ... + 354660.

Almost surely, 2^14540240 is an apocalyptic number.

14540240 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 14540240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20998656).

14540240 is an abundant number, since it is smaller than the sum of its proper divisors (27457072).

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

14540240 is a wasteful number, since it uses less digits than its factorization.

14540240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 14540240 is about 3813.1666630243. The cubic root of 14540240 is about 244.0753149211.

Adding to 14540240 its reverse (4204541), we get a palindrome (18744781).

The spelling of 14540240 in words is "fourteen million, five hundred forty thousand, two hundred forty".