1395476631 has 12 divisors (see below), whose sum is σ = 2103327408. Its totient is φ = 889869024.

The previous prime is 1395476627. The next prime is 1395476669. The reversal of 1395476631 is 1366745931.

It is a happy number.

1395476631 is a `hidden beast` number, since 1 + 3 + 9 + 5 + 4 + 7 + 6 + 631 = 666.

It is not a de Polignac number, because 1395476631 - 2² = 1395476627 is a prime.

It is a super-2 number, since 2×1395476631² = 3894710055334220322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395476681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3370510 + ... + 3370923.

It is an arithmetic number, because the mean of its divisors is an integer number (175277284).

Almost surely, 2^1395476631 is an apocalyptic number.

1395476631 is a deficient number, since it is larger than the sum of its proper divisors (707850777).

1395476631 is a wasteful number, since it uses less digits than its factorization.

1395476631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741462 (or 6741459 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 1395476631 is about 37356.0789029041. The cubic root of 1395476631 is about 1117.4828224316.

The spelling of 1395476631 in words is "one billion, three hundred ninety-five million, four hundred seventy-six thousand, six hundred thirty-one".