499578380 has 24 divisors (see below), whose sum is σ = 1198988448. Its totient is φ = 171283968.

The previous prime is 499578323. The next prime is 499578413. The reversal of 499578380 is 83875994.

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, 1784069 + ... + 1784348.

It is an arithmetic number, because the mean of its divisors is an integer number (49957852).

Almost surely, 2^499578380 is an apocalyptic number.

It is an amenable number.

499578380 is an abundant number, since it is smaller than the sum of its proper divisors (699410068).

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

499578380 is a wasteful number, since it uses less digits than its factorization.

499578380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568433 (or 3568431 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 499578380 is about 22351.2500768973. The cubic root of 499578380 is about 793.4773699038.

The spelling of 499578380 in words is "four hundred ninety-nine million, five hundred seventy-eight thousand, three hundred eighty".