609251434 has 16 divisors (see below), whose sum is σ = 1020143520. Its totient is φ = 270491760.

The previous prime is 609251417. The next prime is 609251437. The reversal of 609251434 is 434152906.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 609251434.

It is not an unprimeable number, because it can be changed into a prime (609251437) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 321069 + ... + 322960.

It is an arithmetic number, because the mean of its divisors is an integer number (63758970).

Almost surely, 2^609251434 is an apocalyptic number.

609251434 is a deficient number, since it is larger than the sum of its proper divisors (410892086).

609251434 is a wasteful number, since it uses less digits than its factorization.

609251434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644085.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 609251434 is about 24683.0191427224. The cubic root of 609251434 is about 847.7455524787.

The spelling of 609251434 in words is "six hundred nine million, two hundred fifty-one thousand, four hundred thirty-four".