1387040267 has 8 divisors (see below), whose sum is σ = 1390863360. Its totient is φ = 1383224040.

The previous prime is 1387040219. The next prime is 1387040327. The reversal of 1387040267 is 7620407831.

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 1387040267 - 2⁶ = 1387040203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1387040267.

It is not an unprimeable number, because it can be changed into a prime (1387010267) 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, 909968 + ... + 911490.

It is an arithmetic number, because the mean of its divisors is an integer number (173857920).

Almost surely, 2^1387040267 is an apocalyptic number.

1387040267 is a deficient number, since it is larger than the sum of its proper divisors (3823093).

1387040267 is an equidigital number, since it uses as much as digits as its factorization.

1387040267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 1387040267 is about 37242.9895013813. The cubic root of 1387040267 is about 1115.2263523246.

The spelling of 1387040267 in words is "one billion, three hundred eighty-seven million, forty thousand, two hundred sixty-seven".