1604454790 has 8 divisors (see below), whose sum is σ = 2888018640. Its totient is φ = 641781912.

The previous prime is 1604454767. The next prime is 1604454799. The reversal of 1604454790 is 974544061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604454799) 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, 80222730 + ... + 80222749.

It is an arithmetic number, because the mean of its divisors is an integer number (361002330).

Almost surely, 2^1604454790 is an apocalyptic number.

1604454790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1604454790 is a deficient number, since it is larger than the sum of its proper divisors (1283563850).

1604454790 is a wasteful number, since it uses less digits than its factorization.

1604454790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160445486.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1604454790 is about 40055.6461687987. The cubic root of 1604454790 is about 1170.6915798322.

The spelling of 1604454790 in words is "one billion, six hundred four million, four hundred fifty-four thousand, seven hundred ninety".