1395969066 has 40 divisors (see below), whose sum is σ = 3204312804. Its totient is φ = 453971520.

The previous prime is 1395969031. The next prime is 1395969089. The reversal of 1395969066 is 6609695931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1364933025 + 31036041 = 36945^2 + 5571^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 98445 + ... + 111728.

Almost surely, 2^1395969066 is an apocalyptic number.

1395969066 is an abundant number, since it is smaller than the sum of its proper divisors (1808343738).

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

1395969066 is a wasteful number, since it uses less digits than its factorization.

1395969066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210228 (or 210219 counting only the distinct ones).

The product of its (nonzero) digits is 2361960, while the sum is 54.

The square root of 1395969066 is about 37362.6694174814. The cubic root of 1395969066 is about 1117.6142525408.

The spelling of 1395969066 in words is "one billion, three hundred ninety-five million, nine hundred sixty-nine thousand, sixty-six".