1260821732 has 6 divisors (see below), whose sum is σ = 2206438038. Its totient is φ = 630410864.

The previous prime is 1260821651. The next prime is 1260821747. The reversal of 1260821732 is 2371280621.

It can be written as a sum of positive squares in only one way, i.e., 1249905316 + 10916416 = 35354^2 + 3304^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157602713 + ... + 157602720.

It is an arithmetic number, because the mean of its divisors is an integer number (367739673).

Almost surely, 2^1260821732 is an apocalyptic number.

It is an amenable number.

1260821732 is a deficient number, since it is larger than the sum of its proper divisors (945616306).

1260821732 is a wasteful number, since it uses less digits than its factorization.

1260821732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315205437 (or 315205435 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1260821732 is about 35508.0516502948. The cubic root of 1260821732 is about 1080.3170456933.

The spelling of 1260821732 in words is "one billion, two hundred sixty million, eight hundred twenty-one thousand, seven hundred thirty-two".