1238495387 has 8 divisors (see below), whose sum is σ = 1267469280. Its totient is φ = 1209841920.

The previous prime is 1238495369. The next prime is 1238495389. The reversal of 1238495387 is 7835948321.

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 1238495387 - 2¹² = 1238491291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1238495389) 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, 72278 + ... + 87755.

It is an arithmetic number, because the mean of its divisors is an integer number (158433660).

Almost surely, 2^1238495387 is an apocalyptic number.

1238495387 is a deficient number, since it is larger than the sum of its proper divisors (28973893).

1238495387 is a wasteful number, since it uses less digits than its factorization.

1238495387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160213.

The product of its digits is 1451520, while the sum is 50.

The square root of 1238495387 is about 35192.2631696230. The cubic root of 1238495387 is about 1073.9023624492.

The spelling of 1238495387 in words is "one billion, two hundred thirty-eight million, four hundred ninety-five thousand, three hundred eighty-seven".