1628605395 has 12 divisors (see below), whose sum is σ = 2822916096. Its totient is φ = 868589520.

The previous prime is 1628605369. The next prime is 1628605397. The reversal of 1628605395 is 5935068261.

1628605395 is a `hidden beast` number, since 1 + 6 + 2 + 8 + 605 + 39 + 5 = 666.

It is not a de Polignac number, because 1628605395 - 2¹⁰ = 1628604371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 36191231 = 1628605395 / (1 + 6 + 2 + 8 + 6 + 0 + 5 + 3 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1628605395.

It is not an unprimeable number, because it can be changed into a prime (1628605397) 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, 18095571 + ... + 18095660.

It is an arithmetic number, because the mean of its divisors is an integer number (235243008).

Almost surely, 2^1628605395 is an apocalyptic number.

1628605395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1628605395 is a deficient number, since it is larger than the sum of its proper divisors (1194310701).

1628605395 is a wasteful number, since it uses less digits than its factorization.

1628605395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36191242 (or 36191239 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 1628605395 is about 40355.9833853668. The cubic root of 1628605395 is about 1176.5361877948.

The spelling of 1628605395 in words is "one billion, six hundred twenty-eight million, six hundred five thousand, three hundred ninety-five".