1385044276 has 48 divisors (see below), whose sum is σ = 3092221440. Its totient is φ = 527073120.

The previous prime is 1385044261. The next prime is 1385044343. The reversal of 1385044276 is 6724405831.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 39046 + ... + 65533.

It is an arithmetic number, because the mean of its divisors is an integer number (64421280).

Almost surely, 2^1385044276 is an apocalyptic number.

It is an amenable number.

1385044276 is an abundant number, since it is smaller than the sum of its proper divisors (1707177164).

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

1385044276 is a wasteful number, since it uses less digits than its factorization.

1385044276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104644 (or 104642 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 1385044276 is about 37216.1829853627. The cubic root of 1385044276 is about 1114.6911478751.

The spelling of 1385044276 in words is "one billion, three hundred eighty-five million, forty-four thousand, two hundred seventy-six".