1604352 has 36 divisors (see below), whose sum is σ = 4271960. Its totient is φ = 534528.

The previous prime is 1604347. The next prime is 1604359. The reversal of 1604352 is 2534061.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1604359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277 + ... + 1812.

2^1604352 is an apocalyptic number.

1604352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1604352 is an abundant number, since it is smaller than the sum of its proper divisors (2667608).

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

1604352 is an equidigital number, since it uses as much as digits as its factorization.

1604352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1604352 is about 1266.6301749129. The cubic root of 1604352 is about 117.0666579033.

The spelling of 1604352 in words is "one million, six hundred four thousand, three hundred fifty-two".