1620848193 has 16 divisors (see below), whose sum is σ = 2240006400. Its totient is φ = 1041272960.

The previous prime is 1620848191. The next prime is 1620848209. The reversal of 1620848193 is 3918480261.

It is a cyclic number.

It is not a de Polignac number, because 1620848193 - 2¹ = 1620848191 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1620848191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27448 + ... + 63206.

It is an arithmetic number, because the mean of its divisors is an integer number (140000400).

Almost surely, 2^1620848193 is an apocalyptic number.

It is an amenable number.

1620848193 is a deficient number, since it is larger than the sum of its proper divisors (619158207).

1620848193 is a wasteful number, since it uses less digits than its factorization.

1620848193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36312.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1620848193 is about 40259.7589784142. The cubic root of 1620848193 is about 1174.6652296331.

The spelling of 1620848193 in words is "one billion, six hundred twenty million, eight hundred forty-eight thousand, one hundred ninety-three".