1369540432 has 20 divisors (see below), whose sum is σ = 2857599220. Its totient is φ = 632095488.

The previous prime is 1369540423. The next prime is 1369540453. The reversal of 1369540432 is 2340459631.

It can be written as a sum of positive squares in 2 ways, for example, as 395850816 + 973689616 = 19896^2 + 31204^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1369540391 and 1369540400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3291957 + ... + 3292372.

It is an arithmetic number, because the mean of its divisors is an integer number (142879961).

Almost surely, 2^1369540432 is an apocalyptic number.

It is an amenable number.

1369540432 is an abundant number, since it is smaller than the sum of its proper divisors (1488058788).

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

1369540432 is a wasteful number, since it uses less digits than its factorization.

1369540432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6584350 (or 6584344 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 1369540432 is about 37007.3024145235. The cubic root of 1369540432 is about 1110.5163390591.

The spelling of 1369540432 in words is "one billion, three hundred sixty-nine million, five hundred forty thousand, four hundred thirty-two".