516235040 has 24 divisors (see below), whose sum is σ = 1219605660. Its totient is φ = 206493952.

The previous prime is 516235037. The next prime is 516235087. The reversal of 516235040 is 40532615.

It can be written as a sum of positive squares in 2 ways, for example, as 462594064 + 53640976 = 21508^2 + 7324^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613075 + ... + 1613394.

Almost surely, 2^516235040 is an apocalyptic number.

It is an amenable number.

516235040 is an abundant number, since it is smaller than the sum of its proper divisors (703370620).

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

516235040 is a wasteful number, since it uses less digits than its factorization.

516235040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226484 (or 3226476 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 516235040 is about 22720.8063237201. The cubic root of 516235040 is about 802.1996961276.

Adding to 516235040 its reverse (40532615), we get a palindrome (556767655).

The spelling of 516235040 in words is "five hundred sixteen million, two hundred thirty-five thousand, forty".