515474380 has 48 divisors (see below), whose sum is σ = 1135483776. Its totient is φ = 196335360.

The previous prime is 515474369. The next prime is 515474381. The reversal of 515474380 is 83474515.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (515474381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27370 + ... + 42190.

It is an arithmetic number, because the mean of its divisors is an integer number (23655912).

Almost surely, 2^515474380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515474380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567741888).

515474380 is an abundant number, since it is smaller than the sum of its proper divisors (620009396).

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

515474380 is a wasteful number, since it uses less digits than its factorization.

515474380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14914 (or 14912 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 515474380 is about 22704.0608702496. The cubic root of 515474380 is about 801.8054950856.

The spelling of 515474380 in words is "five hundred fifteen million, four hundred seventy-four thousand, three hundred eighty".