1385746426 has 8 divisors (see below), whose sum is σ = 2104931520. Its totient is φ = 684102588.

The previous prime is 1385746421. The next prime is 1385746429. The reversal of 1385746426 is 6246475831.

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

It is not an unprimeable number, because it can be changed into a prime (1385746421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4385116 + ... + 4385431.

It is an arithmetic number, because the mean of its divisors is an integer number (263116440).

Almost surely, 2^1385746426 is an apocalyptic number.

1385746426 is a deficient number, since it is larger than the sum of its proper divisors (719185094).

1385746426 is an equidigital number, since it uses as much as digits as its factorization.

1385746426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770628.

The product of its digits is 967680, while the sum is 46.

The square root of 1385746426 is about 37225.6151863203. The cubic root of 1385746426 is about 1114.8794807633.

The spelling of 1385746426 in words is "one billion, three hundred eighty-five million, seven hundred forty-six thousand, four hundred twenty-six".