1383451446 has 64 divisors (see below), whose sum is σ = 3237857280. Its totient is φ = 390251520.

The previous prime is 1383451373. The next prime is 1383451457. The reversal of 1383451446 is 6441543831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30886 + ... + 60998.

It is an arithmetic number, because the mean of its divisors is an integer number (50591520).

Almost surely, 2^1383451446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383451446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618928640).

1383451446 is an abundant number, since it is smaller than the sum of its proper divisors (1854405834).

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

1383451446 is a wasteful number, since it uses less digits than its factorization.

1383451446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30181.

The product of its digits is 138240, while the sum is 39.

The square root of 1383451446 is about 37194.7771333557. Note that the first 3 decimals coincide. The cubic root of 1383451446 is about 1114.2636778914.

The spelling of 1383451446 in words is "one billion, three hundred eighty-three million, four hundred fifty-one thousand, four hundred forty-six".