1361969352 has 24 divisors (see below), whose sum is σ = 3688667190. Its totient is φ = 453989760.

The previous prime is 1361969351. The next prime is 1361969377. The reversal of 1361969352 is 2539691631.

It can be written as a sum of positive squares in only one way, i.e., 1356743556 + 5225796 = 36834^2 + 2286^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1361969298 and 1361969307.

It is not an unprimeable number, because it can be changed into a prime (1361969351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9458049 + ... + 9458192.

Almost surely, 2^1361969352 is an apocalyptic number.

1361969352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1361969352 is an abundant number, since it is smaller than the sum of its proper divisors (2326697838).

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

1361969352 is a wasteful number, since it uses less digits than its factorization.

1361969352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18916253 (or 18916246 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 1361969352 is about 36904.8689470644. The cubic root of 1361969352 is about 1108.4661746566.

The spelling of 1361969352 in words is "one billion, three hundred sixty-one million, nine hundred sixty-nine thousand, three hundred fifty-two".