1948721748 has 24 divisors (see below), whose sum is σ = 4550559552. Its totient is φ = 649067904.

The previous prime is 1948721711. The next prime is 1948721767. The reversal of 1948721748 is 8471278491.

It is a super-2 number, since 2×1948721748² = 7595032902256351008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1948721748.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47040 + ... + 78167.

It is an arithmetic number, because the mean of its divisors is an integer number (189606648).

Almost surely, 2^1948721748 is an apocalyptic number.

It is an amenable number.

1948721748 is an abundant number, since it is smaller than the sum of its proper divisors (2601837804).

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

1948721748 is a wasteful number, since it uses less digits than its factorization.

1948721748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126511 (or 126509 counting only the distinct ones).

The product of its digits is 903168, while the sum is 51.

The square root of 1948721748 is about 44144.3286051561. The cubic root of 1948721748 is about 1249.0599327694.

The spelling of 1948721748 in words is "one billion, nine hundred forty-eight million, seven hundred twenty-one thousand, seven hundred forty-eight".