1378058836 has 96 divisors (see below), whose sum is σ = 3069480960. Its totient is φ = 530212320.

The previous prime is 1378058819. The next prime is 1378058849. The reversal of 1378058836 is 6388508731.

It is a self number, because there is not a number n which added to its sum of digits gives 1378058836.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 3838425 + ... + 3838783.

It is an arithmetic number, because the mean of its divisors is an integer number (31973760).

Almost surely, 2^1378058836 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 1378058836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1534740480).

1378058836 is an abundant number, since it is smaller than the sum of its proper divisors (1691422124).

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

1378058836 is a wasteful number, since it uses less digits than its factorization.

1378058836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 1378058836 is about 37122.2148584914. The cubic root of 1378058836 is about 1112.8140152332.

It can be divided in two parts, 137805 and 8836, that added together give a palindrome (146641).

The spelling of 1378058836 in words is "one billion, three hundred seventy-eight million, fifty-eight thousand, eight hundred thirty-six".