1383421672 has 16 divisors (see below), whose sum is σ = 2657182500. Its totient is φ = 674839680.

The previous prime is 1383421657. The next prime is 1383421679. The reversal of 1383421672 is 2761243831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 960132196 + 423289476 = 30986^2 + 20574^2 .

It is not an unprimeable number, because it can be changed into a prime (1383421679) 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, 2108547 + ... + 2109202.

Almost surely, 2^1383421672 is an apocalyptic number.

It is an amenable number.

1383421672 is a deficient number, since it is larger than the sum of its proper divisors (1273760828).

1383421672 is a wasteful number, since it uses less digits than its factorization.

1383421672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217796 (or 4217792 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 1383421672 is about 37194.3768868360. The cubic root of 1383421672 is about 1114.2556842788.

The spelling of 1383421672 in words is "one billion, three hundred eighty-three million, four hundred twenty-one thousand, six hundred seventy-two".