1948749542 has 12 divisors (see below), whose sum is σ = 3105188340. Its totient is φ = 917058336.

The previous prime is 1948749541. The next prime is 1948749547. The reversal of 1948749542 is 2459478491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948749541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1685192 + ... + 1686347.

It is an arithmetic number, because the mean of its divisors is an integer number (258765695).

Almost surely, 2^1948749542 is an apocalyptic number.

1948749542 is a deficient number, since it is larger than the sum of its proper divisors (1156438798).

1948749542 is a wasteful number, since it uses less digits than its factorization.

1948749542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371575 (or 3371558 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 1948749542 is about 44144.6434123099. The cubic root of 1948749542 is about 1249.0658710564.

The spelling of 1948749542 in words is "one billion, nine hundred forty-eight million, seven hundred forty-nine thousand, five hundred forty-two".