1238840495 has 16 divisors (see below), whose sum is σ = 1495247040. Its totient is φ = 985330944.

The previous prime is 1238840483. The next prime is 1238840503. The reversal of 1238840495 is 5940488321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1238840495 - 2¹⁰ = 1238839471 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1259774 + ... + 1260756.

It is an arithmetic number, because the mean of its divisors is an integer number (93452940).

Almost surely, 2^1238840495 is an apocalyptic number.

1238840495 is a deficient number, since it is larger than the sum of its proper divisors (256406545).

1238840495 is an equidigital number, since it uses as much as digits as its factorization.

1238840495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 1238840495 is about 35197.1660080751. The cubic root of 1238840495 is about 1074.0021011811.

The spelling of 1238840495 in words is "one billion, two hundred thirty-eight million, eight hundred forty thousand, four hundred ninety-five".