1380532578 has 16 divisors (see below), whose sum is σ = 2792089440. Its totient is φ = 455006816.

The previous prime is 1380532553. The next prime is 1380532649. The reversal of 1380532578 is 8752350831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292100 + ... + 1293167.

It is an arithmetic number, because the mean of its divisors is an integer number (174505590).

Almost surely, 2^1380532578 is an apocalyptic number.

1380532578 is an abundant number, since it is smaller than the sum of its proper divisors (1411556862).

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

1380532578 is a wasteful number, since it uses less digits than its factorization.

1380532578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585361.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 1380532578 is about 37155.5188094582. The cubic root of 1380532578 is about 1113.4794849388.

The spelling of 1380532578 in words is "one billion, three hundred eighty million, five hundred thirty-two thousand, five hundred seventy-eight".