514540240 has 40 divisors (see below), whose sum is σ = 1210735008. Its totient is φ = 203333760.

The previous prime is 514540217. The next prime is 514540249. The reversal of 514540240 is 42045415.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514540249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32106 + ... + 45385.

Almost surely, 2^514540240 is an apocalyptic number.

It is an amenable number.

514540240 is an abundant number, since it is smaller than the sum of its proper divisors (696194768).

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

514540240 is a wasteful number, since it uses less digits than its factorization.

514540240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77587 (or 77581 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 514540240 is about 22683.4794509132. The cubic root of 514540240 is about 801.3208596287.

Adding to 514540240 its reverse (42045415), we get a palindrome (556585655).

The spelling of 514540240 in words is "five hundred fourteen million, five hundred forty thousand, two hundred forty".