423339157 has 4 divisors (see below), whose sum is σ = 423419116. Its totient is φ = 423259200.

The previous prime is 423339107. The next prime is 423339197. The reversal of 423339157 is 751933324.

It is a happy number.

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 146748996 + 276590161 = 12114^2 + 16631^2 .

It is a cyclic number.

It is not a de Polignac number, because 423339157 - 2⁷ = 423339029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423339107) 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, 31428 + ... + 42829.

It is an arithmetic number, because the mean of its divisors is an integer number (105854779).

Almost surely, 2^423339157 is an apocalyptic number.

It is an amenable number.

423339157 is a deficient number, since it is larger than the sum of its proper divisors (79959).

423339157 is an equidigital number, since it uses as much as digits as its factorization.

423339157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79958.

The product of its digits is 68040, while the sum is 37.

The square root of 423339157 is about 20575.2073379590. The cubic root of 423339157 is about 750.8666467714.

The spelling of 423339157 in words is "four hundred twenty-three million, three hundred thirty-nine thousand, one hundred fifty-seven".