511260240 has 40 divisors (see below), whose sum is σ = 1584907488. Its totient is φ = 136336000.

The previous prime is 511260229. The next prime is 511260241. The reversal of 511260240 is 42062115.

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

It is a super-2 number, since 2×511260240² = 522774066009715200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511260241) 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, 1064886 + ... + 1065365.

Almost surely, 2^511260240 is an apocalyptic number.

It is an amenable number.

511260240 is an abundant number, since it is smaller than the sum of its proper divisors (1073647248).

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

511260240 is a wasteful number, since it uses less digits than its factorization.

511260240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130267 (or 2130261 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 511260240 is about 22611.0645481366. The cubic root of 511260240 is about 799.6145226222.

The spelling of 511260240 in words is "five hundred eleven million, two hundred sixty thousand, two hundred forty".