1320477952 has 18 divisors (see below), whose sum is σ = 2635798298. Its totient is φ = 660238848.

The previous prime is 1320477943. The next prime is 1320477971. The reversal of 1320477952 is 2597740231.

It can be written as a sum of positive squares in only one way, i.e., 1320304896 + 173056 = 36336^2 + 416^2 .

It is a super-2 number, since 2×1320477952² = 3487324043436228608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578803 + ... + 2579314.

Almost surely, 2^1320477952 is an apocalyptic number.

It is an amenable number.

1320477952 is a deficient number, since it is larger than the sum of its proper divisors (1315320346).

1320477952 is an frugal number, since it uses more digits than its factorization.

1320477952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158133 (or 5158119 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 1320477952 is about 36338.3812517839. The cubic root of 1320477952 is about 1097.0936922000.

The spelling of 1320477952 in words is "one billion, three hundred twenty million, four hundred seventy-seven thousand, nine hundred fifty-two".