509970434 has 4 divisors (see below), whose sum is σ = 764955654. Its totient is φ = 254985216.

The previous prime is 509970427. The next prime is 509970457. The reversal of 509970434 is 434079905.

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., 442976209 + 66994225 = 21047^2 + 8185^2 .

It is a junction number, because it is equal to n+sod(n) for n = 509970391 and 509970400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127492607 + ... + 127492610.

Almost surely, 2^509970434 is an apocalyptic number.

509970434 is a deficient number, since it is larger than the sum of its proper divisors (254985220).

509970434 is a wasteful number, since it uses less digits than its factorization.

509970434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254985219.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 509970434 is about 22582.5249695423. The cubic root of 509970434 is about 798.9415345563.

The spelling of 509970434 in words is "five hundred nine million, nine hundred seventy thousand, four hundred thirty-four".