1604742167 has 4 divisors (see below), whose sum is σ = 1833991056. Its totient is φ = 1375493280.

The previous prime is 1604742157. The next prime is 1604742193. The reversal of 1604742167 is 7612474061.

It is a happy number.

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

It is not a de Polignac number, because 1604742167 - 2⁴ = 1604742151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1604742167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604742127) 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, 114624434 + ... + 114624447.

It is an arithmetic number, because the mean of its divisors is an integer number (458497764).

Almost surely, 2^1604742167 is an apocalyptic number.

1604742167 is a deficient number, since it is larger than the sum of its proper divisors (229248889).

1604742167 is an equidigital number, since it uses as much as digits as its factorization.

1604742167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229248888.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 1604742167 is about 40059.2332303053. The cubic root of 1604742167 is about 1170.7614706039.

The spelling of 1604742167 in words is "one billion, six hundred four million, seven hundred forty-two thousand, one hundred sixty-seven".