801428 has 6 divisors (see below), whose sum is σ = 1402506. Its totient is φ = 400712.

The previous prime is 801421. The next prime is 801461. The reversal of 801428 is 824108.

It can be written as a sum of positive squares in only one way, i.e., 407044 + 394384 = 638^2 + 628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801421) by changing a digit.

801428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100175 + ... + 100182.

It is an arithmetic number, because the mean of its divisors is an integer number (233751).

2⁸⁰¹⁴²⁸ is an apocalyptic number.

It is an amenable number.

801428 is a deficient number, since it is larger than the sum of its proper divisors (601078).

801428 is a wasteful number, since it uses less digits than its factorization.

801428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200361 (or 200359 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 801428 is about 895.2251113547. The cubic root of 801428 is about 92.8869787472.

The spelling of 801428 in words is "eight hundred one thousand, four hundred twenty-eight".