1395690189 has 8 divisors (see below), whose sum is σ = 1867543872. Its totient is φ = 927148320.

The previous prime is 1395690167. The next prime is 1395690217. The reversal of 1395690189 is 9810965931.

It is a happy number.

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

It is not a de Polignac number, because 1395690189 - 2⁹ = 1395689677 is a prime.

It is a super-2 number, since 2×1395690189² = 3895902207341711442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395690119) 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, 826969 + ... + 828654.

It is an arithmetic number, because the mean of its divisors is an integer number (233442984).

Almost surely, 2^1395690189 is an apocalyptic number.

It is an amenable number.

1395690189 is a deficient number, since it is larger than the sum of its proper divisors (471853683).

1395690189 is a wasteful number, since it uses less digits than its factorization.

1395690189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655907.

The product of its (nonzero) digits is 524880, while the sum is 51.

The square root of 1395690189 is about 37358.9372038338. The cubic root of 1395690189 is about 1117.5398245145.

The spelling of 1395690189 in words is "one billion, three hundred ninety-five million, six hundred ninety thousand, one hundred eighty-nine".