514021240 has 32 divisors (see below), whose sum is σ = 1157204880. Its totient is φ = 205491712.

The previous prime is 514021237. The next prime is 514021247. The reversal of 514021240 is 42120415.

It is a super-2 number, since 2×514021240² = 528435670342275200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514021247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116352 + ... + 120688.

Almost surely, 2^514021240 is an apocalyptic number.

It is an amenable number.

514021240 is an abundant number, since it is smaller than the sum of its proper divisors (643183640).

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

514021240 is a wasteful number, since it uses less digits than its factorization.

514021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311 (or 7307 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 514021240 is about 22672.0365207892. The cubic root of 514021240 is about 801.0513468985.

Adding to 514021240 its reverse (42120415), we get a palindrome (556141655).

The spelling of 514021240 in words is "five hundred fourteen million, twenty-one thousand, two hundred forty".