1380467287 has 4 divisors (see below), whose sum is σ = 1453123480. Its totient is φ = 1307811096.

The previous prime is 1380467279. The next prime is 1380467317. The reversal of 1380467287 is 7827640831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1380467287 - 2³ = 1380467279 is a prime.

It is a super-4 number, since 4×1380467287⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380467087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36328068 + ... + 36328105.

It is an arithmetic number, because the mean of its divisors is an integer number (363280870).

Almost surely, 2^1380467287 is an apocalyptic number.

1380467287 is a deficient number, since it is larger than the sum of its proper divisors (72656193).

1380467287 is an equidigital number, since it uses as much as digits as its factorization.

1380467287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72656192.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 1380467287 is about 37154.6401812748. The cubic root of 1380467287 is about 1113.4619310043.

The spelling of 1380467287 in words is "one billion, three hundred eighty million, four hundred sixty-seven thousand, two hundred eighty-seven".