512340240 has 40 divisors (see below), whose sum is σ = 1588255488. Its totient is φ = 136624000.

The previous prime is 512340233. The next prime is 512340253. The reversal of 512340240 is 42043215.

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

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, 1067136 + ... + 1067615.

Almost surely, 2^512340240 is an apocalyptic number.

It is an amenable number.

512340240 is an abundant number, since it is smaller than the sum of its proper divisors (1075915248).

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

512340240 is a wasteful number, since it uses less digits than its factorization.

512340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134767 (or 2134761 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 512340240 is about 22634.9340621969. The cubic root of 512340240 is about 800.1771690943.

Adding to 512340240 its reverse (42043215), we get a palindrome (554383455).

The spelling of 512340240 in words is "five hundred twelve million, three hundred forty thousand, two hundred forty".