1606748049 has 16 divisors (see below), whose sum is σ = 2388133440. Its totient is φ = 1067670720.

The previous prime is 1606748023. The next prime is 1606748107. The reversal of 1606748049 is 9408476061.

1606748049 is a `hidden beast` number, since 160 + 6 + 7 + 480 + 4 + 9 = 666.

It is not a de Polignac number, because 1606748049 - 2⁷ = 1606747921 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1606747995 and 1606748013.

It is not an unprimeable number, because it can be changed into a prime (1606748849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88632 + ... + 105209.

It is an arithmetic number, because the mean of its divisors is an integer number (149258340).

Almost surely, 2^1606748049 is an apocalyptic number.

It is an amenable number.

1606748049 is a deficient number, since it is larger than the sum of its proper divisors (781385391).

1606748049 is a wasteful number, since it uses less digits than its factorization.

1606748049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194157 (or 194151 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 1606748049 is about 40084.2618617332. The cubic root of 1606748049 is about 1171.2490736606.

The spelling of 1606748049 in words is "one billion, six hundred six million, seven hundred forty-eight thousand, forty-nine".