1604511952 has 40 divisors (see below), whose sum is σ = 3311413056. Its totient is φ = 750521856.

The previous prime is 1604511929. The next prime is 1604512009. The reversal of 1604511952 is 2591154061.

It is a happy number.

It is a super-2 number, since 2×1604511952² = 5148917208221700608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 27763 + ... + 63085.

Almost surely, 2^1604511952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1604511952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655706528).

1604511952 is an abundant number, since it is smaller than the sum of its proper divisors (1706901104).

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

1604511952 is a wasteful number, since it uses less digits than its factorization.

1604511952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35515 (or 35509 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1604511952 is about 40056.3596948100. The cubic root of 1604511952 is about 1170.7054824318.

The spelling of 1604511952 in words is "one billion, six hundred four million, five hundred eleven thousand, nine hundred fifty-two".