1380089778 has 8 divisors (see below), whose sum is σ = 2760179568. Its totient is φ = 460029924.

The previous prime is 1380089761. The next prime is 1380089779. The reversal of 1380089778 is 8779800831.

1380089778 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1380089778 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1380089778.

It is not an unprimeable number, because it can be changed into a prime (1380089779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115007476 + ... + 115007487.

It is an arithmetic number, because the mean of its divisors is an integer number (345022446).

Almost surely, 2^1380089778 is an apocalyptic number.

1380089778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1380089778 is a wasteful number, since it uses less digits than its factorization.

1380089778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230014968.

The product of its (nonzero) digits is 677376, while the sum is 51.

The square root of 1380089778 is about 37149.5595936210. The cubic root of 1380089778 is about 1113.3604242594.

The spelling of 1380089778 in words is "one billion, three hundred eighty million, eighty-nine thousand, seven hundred seventy-eight".