1604417746 has 4 divisors (see below), whose sum is σ = 2406626622. Its totient is φ = 802208872.

The previous prime is 1604417681. The next prime is 1604417767. The reversal of 1604417746 is 6477144061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1524512025 + 79905721 = 39045^2 + 8939^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1604417699 and 1604417708.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 401104435 + ... + 401104438.

Almost surely, 2^1604417746 is an apocalyptic number.

1604417746 is a deficient number, since it is larger than the sum of its proper divisors (802208876).

1604417746 is an equidigital number, since it uses as much as digits as its factorization.

1604417746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802208875.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 1604417746 is about 40055.1837594087. The cubic root of 1604417746 is about 1170.6825700359.

The spelling of 1604417746 in words is "one billion, six hundred four million, four hundred seventeen thousand, seven hundred forty-six".