1848139420 has 24 divisors (see below), whose sum is σ = 3927856464. Its totient is φ = 730348416.

The previous prime is 1848139373. The next prime is 1848139421. The reversal of 1848139420 is 249318481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1848139421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555009 + ... + 558328.

It is an arithmetic number, because the mean of its divisors is an integer number (163660686).

Almost surely, 2^1848139420 is an apocalyptic number.

1848139420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1848139420 is an abundant number, since it is smaller than the sum of its proper divisors (2079717044).

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

1848139420 is a wasteful number, since it uses less digits than its factorization.

1848139420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113429 (or 1113427 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1848139420 is about 42989.9920911833. The cubic root of 1848139420 is about 1227.1893476247.

The spelling of 1848139420 in words is "one billion, eight hundred forty-eight million, one hundred thirty-nine thousand, four hundred twenty".