1382765420 has 12 divisors (see below), whose sum is σ = 2903807424. Its totient is φ = 553106160.

The previous prime is 1382765393. The next prime is 1382765551. The reversal of 1382765420 is 245672831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34569116 + ... + 34569155.

It is an arithmetic number, because the mean of its divisors is an integer number (241983952).

Almost surely, 2^1382765420 is an apocalyptic number.

1382765420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1382765420 is an abundant number, since it is smaller than the sum of its proper divisors (1521042004).

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

1382765420 is a wasteful number, since it uses less digits than its factorization.

1382765420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69138280 (or 69138278 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 1382765420 is about 37185.5539154656. The cubic root of 1382765420 is about 1114.0794670557.

The spelling of 1382765420 in words is "one billion, three hundred eighty-two million, seven hundred sixty-five thousand, four hundred twenty".