1383261612 has 12 divisors (see below), whose sum is σ = 3227610456. Its totient is φ = 461087200.

The previous prime is 1383261611. The next prime is 1383261631. The reversal of 1383261612 is 2161623831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1383261611) 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, 57635889 + ... + 57635912.

It is an arithmetic number, because the mean of its divisors is an integer number (268967538).

Almost surely, 2^1383261612 is an apocalyptic number.

1383261612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1383261612 is an abundant number, since it is smaller than the sum of its proper divisors (1844348844).

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

1383261612 is a wasteful number, since it uses less digits than its factorization.

1383261612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115271808 (or 115271806 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 1383261612 is about 37192.2251552660. The cubic root of 1383261612 is about 1114.2127100006.

The spelling of 1383261612 in words is "one billion, three hundred eighty-three million, two hundred sixty-one thousand, six hundred twelve".