1948423720 has 32 divisors (see below), whose sum is σ = 4641834600. Its totient is φ = 733523968.

The previous prime is 1948423693. The next prime is 1948423721. The reversal of 1948423720 is 273248491.

It can be written as a sum of positive squares in 4 ways, for example, as 1582925796 + 365497924 = 39786^2 + 19118^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1948423721) 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, 1431985 + ... + 1433344.

Almost surely, 2^1948423720 is an apocalyptic number.

1948423720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1948423720 is an abundant number, since it is smaller than the sum of its proper divisors (2693410880).

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

1948423720 is a wasteful number, since it uses less digits than its factorization.

1948423720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865357 (or 2865353 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1948423720 is about 44140.9528669239. The cubic root of 1948423720 is about 1248.9962544783.

The spelling of 1948423720 in words is "one billion, nine hundred forty-eight million, four hundred twenty-three thousand, seven hundred twenty".