609797442 has 32 divisors (see below), whose sum is σ = 1263081600. Its totient is φ = 196034048.

The previous prime is 609797423. The next prime is 609797443. The reversal of 609797442 is 244797906.

It is a junction number, because it is equal to n+sod(n) for n = 609797391 and 609797400.

It is not an unprimeable number, because it can be changed into a prime (609797443) 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 15 ways as a sum of consecutive naturals, for example, 228178 + ... + 230834.

It is an arithmetic number, because the mean of its divisors is an integer number (39471300).

Almost surely, 2^609797442 is an apocalyptic number.

609797442 is an abundant number, since it is smaller than the sum of its proper divisors (653284158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

609797442 is a wasteful number, since it uses less digits than its factorization.

609797442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010.

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 609797442 is about 24694.0770631340. The cubic root of 609797442 is about 847.9987252636.

The spelling of 609797442 in words is "six hundred nine million, seven hundred ninety-seven thousand, four hundred forty-two".