1383466645 has 24 divisors (see below), whose sum is σ = 1829608992. Its totient is φ = 995968800.

The previous prime is 1383466619. The next prime is 1383466673. The reversal of 1383466645 is 5466643831.

It is not a de Polignac number, because 1383466645 - 2⁷ = 1383466517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1383466595 and 1383466604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 582310 + ... + 584680.

It is an arithmetic number, because the mean of its divisors is an integer number (76233708).

Almost surely, 2^1383466645 is an apocalyptic number.

It is an amenable number.

1383466645 is a deficient number, since it is larger than the sum of its proper divisors (446142347).

1383466645 is a wasteful number, since it uses less digits than its factorization.

1383466645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593 (or 2490 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The square root of 1383466645 is about 37194.9814491149. The cubic root of 1383466645 is about 1114.2677584181.

It can be divided in two parts, 138346 and 6645, that added together give a triangular number (144991 = T₅₃₈).

The spelling of 1383466645 in words is "one billion, three hundred eighty-three million, four hundred sixty-six thousand, six hundred forty-five".