801424 has 20 divisors (see below), whose sum is σ = 1672636. Its totient is φ = 369792.

The previous prime is 801421. The next prime is 801461. The reversal of 801424 is 424108.

It can be written as a sum of positive squares in 2 ways, for example, as 518400 + 283024 = 720^2 + 532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801421) 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, 1719 + ... + 2134.

2⁸⁰¹⁴²⁴ is an apocalyptic number.

It is an amenable number.

801424 is an abundant number, since it is smaller than the sum of its proper divisors (871212).

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

801424 is a wasteful number, since it uses less digits than its factorization.

801424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874 (or 3868 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 801424 is about 895.2228772769. Note that the first 3 decimals coincide. The cubic root of 801424 is about 92.8868242111.

It can be divided in two parts, 801 and 424, that added together give a triangular number (1225 = T₄₉).

The spelling of 801424 in words is "eight hundred one thousand, four hundred twenty-four".