1948731340 has 24 divisors (see below), whose sum is σ = 4099706352. Its totient is φ = 778088640.

The previous prime is 1948731329. The next prime is 1948731377. The reversal of 1948731340 is 431378491.

It is a junction number, because it is equal to n+sod(n) for n = 1948731293 and 1948731302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76326 + ... + 98605.

It is an arithmetic number, because the mean of its divisors is an integer number (170821098).

Almost surely, 2^1948731340 is an apocalyptic number.

1948731340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1948731340 is an abundant number, since it is smaller than the sum of its proper divisors (2150975012).

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

1948731340 is a wasteful number, since it uses less digits than its factorization.

1948731340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175497 (or 175495 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1948731340 is about 44144.4372486500. The cubic root of 1948731340 is about 1249.0619821407.

The spelling of 1948731340 in words is "one billion, nine hundred forty-eight million, seven hundred thirty-one thousand, three hundred forty".