1604178452 has 24 divisors (see below), whose sum is σ = 2900352000. Its totient is φ = 775550880.

The previous prime is 1604178451. The next prime is 1604178467. The reversal of 1604178452 is 2548714061.

It is a super-2 number, since 2×1604178452² = 5146777011722232608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604178451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159674 + ... + 169422.

It is an arithmetic number, because the mean of its divisors is an integer number (120848000).

Almost surely, 2^1604178452 is an apocalyptic number.

It is an amenable number.

1604178452 is a deficient number, since it is larger than the sum of its proper divisors (1296173548).

1604178452 is a wasteful number, since it uses less digits than its factorization.

1604178452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111 (or 11109 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 1604178452 is about 40052.1965939448. The cubic root of 1604178452 is about 1170.6243659005.

The spelling of 1604178452 in words is "one billion, six hundred four million, one hundred seventy-eight thousand, four hundred fifty-two".