1620848238 has 32 divisors (see below), whose sum is σ = 3613040640. Its totient is φ = 481737600.

The previous prime is 1620848227. The next prime is 1620848239. The reversal of 1620848238 is 8328480261.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1620848238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620848239) 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, 416238 + ... + 420113.

It is an arithmetic number, because the mean of its divisors is an integer number (112907520).

Almost surely, 2^1620848238 is an apocalyptic number.

1620848238 is an abundant number, since it is smaller than the sum of its proper divisors (1992192402).

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

1620848238 is a wasteful number, since it uses less digits than its factorization.

1620848238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836392.

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 1620848238 is about 40259.7595372849. The cubic root of 1620848238 is about 1174.6652405039.

It can be divided in two parts, 16208 and 48238, that added together give a palindrome (64446).

The spelling of 1620848238 in words is "one billion, six hundred twenty million, eight hundred forty-eight thousand, two hundred thirty-eight".