1948421 has 4 divisors (see below), whose sum is σ = 2063052. Its totient is φ = 1833792.

The previous prime is 1948411. The next prime is 1948433. The reversal of 1948421 is 1248491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1113025 + 835396 = 1055^2 + 914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1948421 - 2¹⁰ = 1947397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1948411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57290 + ... + 57323.

It is an arithmetic number, because the mean of its divisors is an integer number (515763).

2^1948421 is an apocalyptic number.

It is an amenable number.

1948421 is a deficient number, since it is larger than the sum of its proper divisors (114631).

1948421 is a wasteful number, since it uses less digits than its factorization.

1948421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114630.

The product of its digits is 2304, while the sum is 29.

The square root of 1948421 is about 1395.8585171857. The cubic root of 1948421 is about 124.8995673278.

The spelling of 1948421 in words is "one million, nine hundred forty-eight thousand, four hundred twenty-one".