512352240 has 40 divisors (see below), whose sum is σ = 1588292688. Its totient is φ = 136627200.

The previous prime is 512352223. The next prime is 512352241. The reversal of 512352240 is 42253215.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 512352240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512352241) 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, 1067161 + ... + 1067640.

Almost surely, 2^512352240 is an apocalyptic number.

It is an amenable number.

512352240 is an abundant number, since it is smaller than the sum of its proper divisors (1075940448).

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

512352240 is a wasteful number, since it uses less digits than its factorization.

512352240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134817 (or 2134811 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 512352240 is about 22635.1991376263. The cubic root of 512352240 is about 800.1834162782.

The spelling of 512352240 in words is "five hundred twelve million, three hundred fifty-two thousand, two hundred forty".