807722042 has 8 divisors (see below), whose sum is σ = 1212464532. Its totient is φ = 403567200.

The previous prime is 807722039. The next prime is 807722059. The reversal of 807722042 is 240227708.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 729594121 + 78127921 = 27011^2 + 8839^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143459 + ... + 148982.

Almost surely, 2^807722042 is an apocalyptic number.

807722042 is a deficient number, since it is larger than the sum of its proper divisors (404742490).

807722042 is a wasteful number, since it uses less digits than its factorization.

807722042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293824.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 807722042 is about 28420.4511223872. The cubic root of 807722042 is about 931.2950862546.

The spelling of 807722042 in words is "eight hundred seven million, seven hundred twenty-two thousand, forty-two".