1316623404 has 24 divisors (see below), whose sum is σ = 3080029680. Its totient is φ = 437744704.

The previous prime is 1316623393. The next prime is 1316623417. The reversal of 1316623404 is 4043266131.

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, 136359 + ... + 145694.

It is an arithmetic number, because the mean of its divisors is an integer number (128334570).

Almost surely, 2^1316623404 is an apocalyptic number.

It is an amenable number.

1316623404 is an abundant number, since it is smaller than the sum of its proper divisors (1763406276).

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

1316623404 is a wasteful number, since it uses less digits than its factorization.

1316623404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282449 (or 282447 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1316623404 is about 36285.3056208708. The cubic root of 1316623404 is about 1096.0251594825.

Adding to 1316623404 its reverse (4043266131), we get a palindrome (5359889535).

The spelling of 1316623404 in words is "one billion, three hundred sixteen million, six hundred twenty-three thousand, four hundred four".