1395640622 has 8 divisors (see below), whose sum is σ = 2094003696. Its totient is φ = 697639392.

The previous prime is 1395640613. The next prime is 1395640639. The reversal of 1395640622 is 2260465931.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80603 + ... + 96374.

It is an arithmetic number, because the mean of its divisors is an integer number (261750462).

Almost surely, 2^1395640622 is an apocalyptic number.

1395640622 is a deficient number, since it is larger than the sum of its proper divisors (698363074).

1395640622 is a wasteful number, since it uses less digits than its factorization.

1395640622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180922.

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

The square root of 1395640622 is about 37358.2738091577. The cubic root of 1395640622 is about 1117.5265947991.

The spelling of 1395640622 in words is "one billion, three hundred ninety-five million, six hundred forty thousand, six hundred twenty-two".