514215440 has 80 divisors (see below), whose sum is σ = 1232171136. Its totient is φ = 199449600.

The previous prime is 514215437. The next prime is 514215463. The reversal of 514215440 is 44512415.

It is a tau number, because it is divible by the number of its divisors (80).

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, 691709 + ... + 692451.

Almost surely, 2^514215440 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 514215440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616085568).

514215440 is an abundant number, since it is smaller than the sum of its proper divisors (717955696).

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

514215440 is a wasteful number, since it uses less digits than its factorization.

514215440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 1002 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 514215440 is about 22676.3189252577. The cubic root of 514215440 is about 801.1522147049.

Adding to 514215440 its reverse (44512415), we get a palindrome (558727855).

The spelling of 514215440 in words is "five hundred fourteen million, two hundred fifteen thousand, four hundred forty".