307844434 has 4 divisors (see below), whose sum is σ = 461766654. Its totient is φ = 153922216.

The previous prime is 307844419. The next prime is 307844437. The reversal of 307844434 is 434448703.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 160149025 + 147695409 = 12655^2 + 12153^2 .

It is a junction number, because it is equal to n+sod(n) for n = 307844393 and 307844402.

It is not an unprimeable number, because it can be changed into a prime (307844437) by changing a digit.

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 as a sum of consecutive naturals, namely, 76961107 + ... + 76961110.

Almost surely, 2^307844434 is an apocalyptic number.

307844434 is a deficient number, since it is larger than the sum of its proper divisors (153922220).

307844434 is a wasteful number, since it uses less digits than its factorization.

307844434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153922219.

The product of its (nonzero) digits is 129024, while the sum is 37.

The square root of 307844434 is about 17545.4961172376. The cubic root of 307844434 is about 675.2176227427.

The spelling of 307844434 in words is "three hundred seven million, eight hundred forty-four thousand, four hundred thirty-four".