1395138018 has 16 divisors (see below), whose sum is σ = 2790717696. Its totient is φ = 464972400.

The previous prime is 1395137977. The next prime is 1395138029. The reversal of 1395138018 is 8108315931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34255 + ... + 62957.

It is an arithmetic number, because the mean of its divisors is an integer number (174419856).

Almost surely, 2^1395138018 is an apocalyptic number.

1395138018 is an abundant number, since it is smaller than the sum of its proper divisors (1395579678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1395138018 is a wasteful number, since it uses less digits than its factorization.

1395138018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36809.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 1395138018 is about 37351.5463936903. The cubic root of 1395138018 is about 1117.3924292253.

The spelling of 1395138018 in words is "one billion, three hundred ninety-five million, one hundred thirty-eight thousand, eighteen".