514401240 has 32 divisors (see below), whose sum is σ = 1543204080. Its totient is φ = 137173632.

The previous prime is 514401203. The next prime is 514401257. The reversal of 514401240 is 42104415.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2143219 + ... + 2143458.

Almost surely, 2^514401240 is an apocalyptic number.

It is an amenable number.

514401240 is an abundant number, since it is smaller than the sum of its proper divisors (1028802840).

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

514401240 is a wasteful number, since it uses less digits than its factorization.

514401240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286691 (or 4286687 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 514401240 is about 22680.4153401123. The cubic root of 514401240 is about 801.2486957679.

Adding to 514401240 its reverse (42104415), we get a palindrome (556505655).

The spelling of 514401240 in words is "five hundred fourteen million, four hundred one thousand, two hundred forty".