1604816090 has 16 divisors (see below), whose sum is σ = 2895570720. Its totient is φ = 640392720.

The previous prime is 1604816077. The next prime is 1604816113. The reversal of 1604816090 is 906184061.

It is a self number, because there is not a number n which added to its sum of digits gives 1604816090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187316 + ... + 195695.

It is an arithmetic number, because the mean of its divisors is an integer number (180973170).

Almost surely, 2^1604816090 is an apocalyptic number.

1604816090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1604816090 is a deficient number, since it is larger than the sum of its proper divisors (1290754630).

1604816090 is a wasteful number, since it uses less digits than its factorization.

1604816090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383437.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1604816090 is about 40060.1558908599. The cubic root of 1604816090 is about 1170.7794475045.

The spelling of 1604816090 in words is "one billion, six hundred four million, eight hundred sixteen thousand, ninety".