1384075755 has 72 divisors (see below), whose sum is σ = 2573460864. Its totient is φ = 713836800.

The previous prime is 1384075753. The next prime is 1384075799. The reversal of 1384075755 is 5575704831.

It is a happy number.

1384075755 is a `hidden beast` number, since 1 + 38 + 40 + 7 + 575 + 5 = 666.

It is not a de Polignac number, because 1384075755 - 2¹ = 1384075753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1384075755.

It is not an unprimeable number, because it can be changed into a prime (1384075753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1016275 + ... + 1017635.

It is an arithmetic number, because the mean of its divisors is an integer number (35742512).

Almost surely, 2^1384075755 is an apocalyptic number.

1384075755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1384075755 is a deficient number, since it is larger than the sum of its proper divisors (1189385109).

1384075755 is an frugal number, since it uses more digits than its factorization.

1384075755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421 (or 1400 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 45.

The square root of 1384075755 is about 37203.1686150521. The cubic root of 1384075755 is about 1114.4312636374.

The spelling of 1384075755 in words is "one billion, three hundred eighty-four million, seventy-five thousand, seven hundred fifty-five".