1395469764 has 36 divisors (see below), whose sum is σ = 3798780076. Its totient is φ = 429375168.

The previous prime is 1395469759. The next prime is 1395469783. The reversal of 1395469764 is 4679645931.

1395469764 is a `hidden beast` number, since 1 + 3 + 9 + 546 + 97 + 6 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 447322500 + 948147264 = 21150^2 + 30792^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1395469764.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1490419 + ... + 1491354.

Almost surely, 2^1395469764 is an apocalyptic number.

It is an amenable number.

1395469764 is an abundant number, since it is smaller than the sum of its proper divisors (2403310312).

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

1395469764 is a wasteful number, since it uses less digits than its factorization.

1395469764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981796 (or 2981791 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 1395469764 is about 37355.9869900395. The cubic root of 1395469764 is about 1117.4809894218.

The spelling of 1395469764 in words is "one billion, three hundred ninety-five million, four hundred sixty-nine thousand, seven hundred sixty-four".