1328038623 has 12 divisors (see below), whose sum is σ = 2031118128. Its totient is φ = 833279040.

The previous prime is 1328038583. The next prime is 1328038631. The reversal of 1328038623 is 3268308231.

1328038623 is a `hidden beast` number, since 1 + 3 + 28 + 0 + 3 + 8 + 623 = 666.

It is not a de Polignac number, because 1328038623 - 2⁶ = 1328038559 is a prime.

It is a super-2 number, since 2×1328038623² = 3527373168359472258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328038693) 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, 4339843 + ... + 4340148.

It is an arithmetic number, because the mean of its divisors is an integer number (169259844).

Almost surely, 2^1328038623 is an apocalyptic number.

1328038623 is a deficient number, since it is larger than the sum of its proper divisors (703079505).

1328038623 is a wasteful number, since it uses less digits than its factorization.

1328038623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8680014 (or 8680011 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1328038623 is about 36442.2642408509. The cubic root of 1328038623 is about 1099.1835878786.

The spelling of 1328038623 in words is "one billion, three hundred twenty-eight million, thirty-eight thousand, six hundred twenty-three".