1384545072 has 80 divisors (see below), whose sum is σ = 3676202208. Its totient is φ = 448757760.

The previous prime is 1384545049. The next prime is 1384545077. The reversal of 1384545072 is 2705454831.

It is a self number, because there is not a number n which added to its sum of digits gives 1384545072.

It is not an unprimeable number, because it can be changed into a prime (1384545077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693708 + ... + 695700.

Almost surely, 2^1384545072 is an apocalyptic number.

1384545072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1384545072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1838101104).

1384545072 is an abundant number, since it is smaller than the sum of its proper divisors (2291657136).

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

1384545072 is a wasteful number, since it uses less digits than its factorization.

1384545072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 1384545072 is about 37209.4755673874. The cubic root of 1384545072 is about 1114.5572110866.

The spelling of 1384545072 in words is "one billion, three hundred eighty-four million, five hundred forty-five thousand, seventy-two".