512477994 has 64 divisors (see below), whose sum is σ = 1241487360. Its totient is φ = 137764800.

The previous prime is 512477969. The next prime is 512478011. The reversal of 512477994 is 499774215.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118372 + ... + 122624.

It is an arithmetic number, because the mean of its divisors is an integer number (19398240).

Almost surely, 2^512477994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512477994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620743680).

512477994 is an abundant number, since it is smaller than the sum of its proper divisors (729009366).

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

512477994 is a wasteful number, since it uses less digits than its factorization.

512477994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435.

The product of its digits is 635040, while the sum is 48.

The square root of 512477994 is about 22637.9768088935. The cubic root of 512477994 is about 800.2488777751.

The spelling of 512477994 in words is "five hundred twelve million, four hundred seventy-seven thousand, nine hundred ninety-four".