1729390560 has 48 divisors (see below), whose sum is σ = 5447581776. Its totient is φ = 461170688.

The previous prime is 1729390549. The next prime is 1729390613. The reversal of 1729390560 is 650939271.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1729390560² = 5981583418034227200, which contains 22 as substring.

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, 1800969 + ... + 1801928.

It is an arithmetic number, because the mean of its divisors is an integer number (113491287).

Almost surely, 2^1729390560 is an apocalyptic number.

1729390560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1729390560 is an abundant number, since it is smaller than the sum of its proper divisors (3718191216).

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

1729390560 is a wasteful number, since it uses less digits than its factorization.

1729390560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602915 (or 3602907 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 1729390560 is about 41585.9418553915. The cubic root of 1729390560 is about 1200.3218025838.

The spelling of 1729390560 in words is "one billion, seven hundred twenty-nine million, three hundred ninety thousand, five hundred sixty".