1948391498 has 8 divisors (see below), whose sum is σ = 2929097700. Its totient is φ = 972025600.

The previous prime is 1948391491. The next prime is 1948391503. The reversal of 1948391498 is 8941938491.

It can be written as a sum of positive squares in 2 ways, for example, as 1805995009 + 142396489 = 42497^2 + 11933^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1948391491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083953 + ... + 1085748.

Almost surely, 2^1948391498 is an apocalyptic number.

1948391498 is a deficient number, since it is larger than the sum of its proper divisors (980706202).

1948391498 is a wasteful number, since it uses less digits than its factorization.

1948391498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170152.

The product of its digits is 2239488, while the sum is 56.

The square root of 1948391498 is about 44140.5878755596. The cubic root of 1948391498 is about 1248.9893693608.

The spelling of 1948391498 in words is "one billion, nine hundred forty-eight million, three hundred ninety-one thousand, four hundred ninety-eight".