1388080401 has 8 divisors (see below), whose sum is σ = 1871569440. Its totient is φ = 914989152.

The previous prime is 1388080399. The next prime is 1388080417. The reversal of 1388080401 is 1040808831.

It is a happy number.

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

It is not a de Polignac number, because 1388080401 - 2¹ = 1388080399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1388080801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2599135 + ... + 2599668.

It is an arithmetic number, because the mean of its divisors is an integer number (233946180).

Almost surely, 2^1388080401 is an apocalyptic number.

It is an amenable number.

1388080401 is a deficient number, since it is larger than the sum of its proper divisors (483489039).

1388080401 is an equidigital number, since it uses as much as digits as its factorization.

1388080401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5198895.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 1388080401 is about 37256.9510427249. The cubic root of 1388080401 is about 1115.5050500763.

The spelling of 1388080401 in words is "one billion, three hundred eighty-eight million, eighty thousand, four hundred one".