1384453720 has 64 divisors (see below), whose sum is σ = 3500521920. Its totient is φ = 488953344.

The previous prime is 1384453717. The next prime is 1384453727. The reversal of 1384453720 is 273544831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1384453720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384453727) 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, 45919 + ... + 69838.

It is an arithmetic number, because the mean of its divisors is an integer number (54695655).

Almost surely, 2^1384453720 is an apocalyptic number.

1384453720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1384453720 is an abundant number, since it is smaller than the sum of its proper divisors (2116068200).

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

1384453720 is a wasteful number, since it uses less digits than its factorization.

1384453720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115804 (or 115800 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 1384453720 is about 37208.2480103538. The cubic root of 1384453720 is about 1114.5326977954.

The spelling of 1384453720 in words is "one billion, three hundred eighty-four million, four hundred fifty-three thousand, seven hundred twenty".