610538994 has 48 divisors (see below), whose sum is σ = 1433420352. Its totient is φ = 186693984.

The previous prime is 610538927. The next prime is 610539023. The reversal of 610538994 is 499835016.

It is a happy number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 30139 + ... + 46145.

It is an arithmetic number, because the mean of its divisors is an integer number (29862924).

Almost surely, 2^610538994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 610538994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716710176).

610538994 is an abundant number, since it is smaller than the sum of its proper divisors (822881358).

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

610538994 is a wasteful number, since it uses less digits than its factorization.

610538994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191 (or 16188 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 610538994 is about 24709.0872757372. The cubic root of 610538994 is about 848.3423259297.

The spelling of 610538994 in words is "six hundred ten million, five hundred thirty-eight thousand, nine hundred ninety-four".