1380740578 has 32 divisors (see below), whose sum is σ = 2564521344. Its totient is φ = 543981312.

The previous prime is 1380740539. The next prime is 1380740593. The reversal of 1380740578 is 8750470831.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57225 + ... + 77692.

It is an arithmetic number, because the mean of its divisors is an integer number (80141292).

Almost surely, 2^1380740578 is an apocalyptic number.

1380740578 is a deficient number, since it is larger than the sum of its proper divisors (1183780766).

1380740578 is a wasteful number, since it uses less digits than its factorization.

1380740578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134986.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 1380740578 is about 37158.3177498659. The cubic root of 1380740578 is about 1113.5354034796.

The spelling of 1380740578 in words is "one billion, three hundred eighty million, seven hundred forty thousand, five hundred seventy-eight".