1388077441 has 8 divisors (see below), whose sum is σ = 1412535168. Its totient is φ = 1363830000.

The previous prime is 1388077429. The next prime is 1388077463. The reversal of 1388077441 is 1447708831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1388077441 - 2⁹ = 1388076929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1388077541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39225 + ... + 65686.

It is an arithmetic number, because the mean of its divisors is an integer number (176566896).

Almost surely, 2^1388077441 is an apocalyptic number.

It is an amenable number.

1388077441 is a deficient number, since it is larger than the sum of its proper divisors (24457727).

1388077441 is a wasteful number, since it uses less digits than its factorization.

1388077441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105143.

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 1388077441 is about 37256.9113185728. The cubic root of 1388077441 is about 1115.5042571594.

The spelling of 1388077441 in words is "one billion, three hundred eighty-eight million, seventy-seven thousand, four hundred forty-one".