1948172860 has 24 divisors (see below), whose sum is σ = 4158233856. Its totient is φ = 766493760.

The previous prime is 1948172843. The next prime is 1948172867. The reversal of 1948172860 is 682718491.

It is a self number, because there is not a number n which added to its sum of digits gives 1948172860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948172867) 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, 797212 + ... + 799651.

It is an arithmetic number, because the mean of its divisors is an integer number (173259744).

Almost surely, 2^1948172860 is an apocalyptic number.

1948172860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1948172860 is an abundant number, since it is smaller than the sum of its proper divisors (2210060996).

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

1948172860 is a wasteful number, since it uses less digits than its factorization.

1948172860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596933 (or 1596931 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 1948172860 is about 44138.1111965612. Note that the first 4 decimals coincide. The cubic root of 1948172860 is about 1248.9426493265.

The spelling of 1948172860 in words is "one billion, nine hundred forty-eight million, one hundred seventy-two thousand, eight hundred sixty".