1604449760 has 48 divisors (see below), whose sum is σ = 3836213136. Its totient is φ = 634042368.

The previous prime is 1604449757. The next prime is 1604449771. The reversal of 1604449760 is 679444061.

It is a super-3 number, since 3×1604449760³ (a number of 29 digits) contains 333 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, 47129 + ... + 73688.

It is an arithmetic number, because the mean of its divisors is an integer number (79921107).

Almost surely, 2^1604449760 is an apocalyptic number.

1604449760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1604449760 is an abundant number, since it is smaller than the sum of its proper divisors (2231763376).

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

1604449760 is a wasteful number, since it uses less digits than its factorization.

1604449760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120915 (or 120907 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1604449760 is about 40055.5833810968. The cubic root of 1604449760 is about 1170.6903564499.

The spelling of 1604449760 in words is "one billion, six hundred four million, four hundred forty-nine thousand, seven hundred sixty".