801478042 has 8 divisors (see below), whose sum is σ = 1203450516. Its totient is φ = 400327872.

The previous prime is 801477991. The next prime is 801478063. The reversal of 801478042 is 240874108.

It can be written as a sum of positive squares in 2 ways, for example, as 800946601 + 531441 = 28301^2 + 729^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 801477989 and 801478007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203133 + ... + 207040.

Almost surely, 2^801478042 is an apocalyptic number.

801478042 is a deficient number, since it is larger than the sum of its proper divisors (401972474).

801478042 is a wasteful number, since it uses less digits than its factorization.

801478042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411152.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 801478042 is about 28310.3875282554. The cubic root of 801478042 is about 928.8891202686.

The spelling of 801478042 in words is "eight hundred one million, four hundred seventy-eight thousand, forty-two".