1948608421 has 8 divisors (see below), whose sum is σ = 1959605888. Its totient is φ = 1937628000.

The previous prime is 1948608407. The next prime is 1948608449. The reversal of 1948608421 is 1248068491.

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

It is a cyclic number.

It is not a de Polignac number, because 1948608421 - 2¹³ = 1948600229 is a prime.

It is a super-2 number, since 2×1948608421² = 7594149556784226482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948608401) 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, 275236 + ... + 282226.

It is an arithmetic number, because the mean of its divisors is an integer number (244950736).

Almost surely, 2^1948608421 is an apocalyptic number.

It is an amenable number.

1948608421 is a deficient number, since it is larger than the sum of its proper divisors (10997467).

1948608421 is a wasteful number, since it uses less digits than its factorization.

1948608421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8523.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1948608421 is about 44143.0449901227. The cubic root of 1948608421 is about 1249.0357194684.

The spelling of 1948608421 in words is "one billion, nine hundred forty-eight million, six hundred eight thousand, four hundred twenty-one".