1395769426 has 36 divisors (see below), whose sum is σ = 2203589934. Its totient is φ = 663016320.

The previous prime is 1395769423. The next prime is 1395769429. The reversal of 1395769426 is 6249675931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1395769423) and next prime (1395769429).

It can be written as a sum of positive squares in 9 ways, for example, as 112338801 + 1283430625 = 10599^2 + 35825^2 .

It is not an unprimeable number, because it can be changed into a prime (1395769423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10188030 + ... + 10188166.

Almost surely, 2^1395769426 is an apocalyptic number.

1395769426 is a deficient number, since it is larger than the sum of its proper divisors (807820508).

1395769426 is an equidigital number, since it uses as much as digits as its factorization.

1395769426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 237 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 52.

The square root of 1395769426 is about 37359.9976713061. The cubic root of 1395769426 is about 1117.5609726719.

The spelling of 1395769426 in words is "one billion, three hundred ninety-five million, seven hundred sixty-nine thousand, four hundred twenty-six".