1609258460 has 24 divisors (see below), whose sum is σ = 3382377936. Its totient is φ = 643144320.

The previous prime is 1609258397. The next prime is 1609258481. The reversal of 1609258460 is 648529061.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10937 + ... + 57776.

It is an arithmetic number, because the mean of its divisors is an integer number (140932414).

Almost surely, 2^1609258460 is an apocalyptic number.

1609258460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1609258460 is an abundant number, since it is smaller than the sum of its proper divisors (1773119476).

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

1609258460 is a wasteful number, since it uses less digits than its factorization.

1609258460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69893 (or 69891 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 1609258460 is about 40115.5638125653. The cubic root of 1609258460 is about 1171.8587495323.

The spelling of 1609258460 in words is "one billion, six hundred nine million, two hundred fifty-eight thousand, four hundred sixty".