1395631442 has 8 divisors (see below), whose sum is σ = 2137988736. Its totient is φ = 682968532.

The previous prime is 1395631429. The next prime is 1395631463. The reversal of 1395631442 is 2441365931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1395631396 and 1395631405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7423478 + ... + 7423665.

It is an arithmetic number, because the mean of its divisors is an integer number (267248592).

Almost surely, 2^1395631442 is an apocalyptic number.

1395631442 is a deficient number, since it is larger than the sum of its proper divisors (742357294).

1395631442 is a wasteful number, since it uses less digits than its factorization.

1395631442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14847192.

The product of its digits is 77760, while the sum is 38.

The square root of 1395631442 is about 37358.1509446065. The cubic root of 1395631442 is about 1117.5241445702.

The spelling of 1395631442 in words is "one billion, three hundred ninety-five million, six hundred thirty-one thousand, four hundred forty-two".