1320761433 has 16 divisors (see below), whose sum is σ = 1896212160. Its totient is φ = 814665216.

The previous prime is 1320761411. The next prime is 1320761437. The reversal of 1320761433 is 3341670231.

It is not a de Polignac number, because 1320761433 - 2¹⁷ = 1320630361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1320761433.

It is not an unprimeable number, because it can be changed into a prime (1320761437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216460 + ... + 222477.

It is an arithmetic number, because the mean of its divisors is an integer number (118513260).

Almost surely, 2^1320761433 is an apocalyptic number.

It is an amenable number.

1320761433 is a deficient number, since it is larger than the sum of its proper divisors (575450727).

1320761433 is a wasteful number, since it uses less digits than its factorization.

1320761433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439016.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 1320761433 is about 36342.2816152206. The cubic root of 1320761433 is about 1097.1721948269.

The spelling of 1320761433 in words is "one billion, three hundred twenty million, seven hundred sixty-one thousand, four hundred thirty-three".