1032673640 has 32 divisors (see below), whose sum is σ = 2347478280. Its totient is φ = 408809472.

The previous prime is 1032673627. The next prime is 1032673651. The reversal of 1032673640 is 463762301.

It can be written as a sum of positive squares in 4 ways, for example, as 879359716 + 153313924 = 29654^2 + 12382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1032673597 and 1032673606.

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, 129197 + ... + 136956.

Almost surely, 2^1032673640 is an apocalyptic number.

1032673640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1032673640 is an abundant number, since it is smaller than the sum of its proper divisors (1314804640).

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

1032673640 is a wasteful number, since it uses less digits than its factorization.

1032673640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266261 (or 266257 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 1032673640 is about 32135.2398466232. The cubic root of 1032673640 is about 1010.7747021664.

The spelling of 1032673640 in words is "one billion, thirty-two million, six hundred seventy-three thousand, six hundred forty".