1380736552 has 48 divisors (see below), whose sum is σ = 2914630740. Its totient is φ = 609531648.

The previous prime is 1380736537. The next prime is 1380736561. The reversal of 1380736552 is 2556370831.

It can be written as a sum of positive squares in 2 ways, for example, as 1257837156 + 122899396 = 35466^2 + 11086^2 .

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 in 11 ways as a sum of consecutive naturals, for example, 42468 + ... + 67564.

Almost surely, 2^1380736552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1380736552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457315370).

1380736552 is an abundant number, since it is smaller than the sum of its proper divisors (1533894188).

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

1380736552 is a wasteful number, since it uses less digits than its factorization.

1380736552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25162 (or 25135 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 1380736552 is about 37158.2635762222. The cubic root of 1380736552 is about 1113.5343211866.

The spelling of 1380736552 in words is "one billion, three hundred eighty million, seven hundred thirty-six thousand, five hundred fifty-two".