513238480 has 40 divisors (see below), whose sum is σ = 1231778304. Its totient is φ = 198672000.

The previous prime is 513238477. The next prime is 513238487. The reversal of 513238480 is 84832315.

It is a happy number.

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

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513238487) 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, 100996 + ... + 105955.

Almost surely, 2^513238480 is an apocalyptic number.

It is an amenable number.

513238480 is an abundant number, since it is smaller than the sum of its proper divisors (718539824).

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

513238480 is a wasteful number, since it uses less digits than its factorization.

513238480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206995 (or 206989 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 513238480 is about 22654.7672687229. The cubic root of 513238480 is about 800.6445222660.

The spelling of 513238480 in words is "five hundred thirteen million, two hundred thirty-eight thousand, four hundred eighty".