512451020 has 48 divisors (see below), whose sum is σ = 1094990400. Its totient is φ = 201411840.

The previous prime is 512451019. The next prime is 512451127. The reversal of 512451020 is 20154215.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 512450983 and 512451001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722426 + ... + 723134.

It is an arithmetic number, because the mean of its divisors is an integer number (22812300).

Almost surely, 2^512451020 is an apocalyptic number.

It is an amenable number.

512451020 is an abundant number, since it is smaller than the sum of its proper divisors (582539380).

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

512451020 is a wasteful number, since it uses less digits than its factorization.

512451020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 512451020 is about 22637.3810322661. The cubic root of 512451020 is about 800.2348373076.

The spelling of 512451020 in words is "five hundred twelve million, four hundred fifty-one thousand, twenty".