1393916226 has 16 divisors (see below), whose sum is σ = 2788335264. Its totient is φ = 464554944.

The previous prime is 1393916213. The next prime is 1393916257. The reversal of 1393916226 is 6226193931.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21801 + ... + 57123.

It is an arithmetic number, because the mean of its divisors is an integer number (174270954).

Almost surely, 2^1393916226 is an apocalyptic number.

1393916226 is an abundant number, since it is smaller than the sum of its proper divisors (1394419038).

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

1393916226 is a wasteful number, since it uses less digits than its factorization.

1393916226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41905.

The product of its digits is 104976, while the sum is 42.

The square root of 1393916226 is about 37335.1875045513. The cubic root of 1393916226 is about 1117.0661485186.

The spelling of 1393916226 in words is "one billion, three hundred ninety-three million, nine hundred sixteen thousand, two hundred twenty-six".