1605051244 has 12 divisors (see below), whose sum is σ = 2827692000. Its totient is φ = 797139248.

The previous prime is 1605051241. The next prime is 1605051299. The reversal of 1605051244 is 4421505061.

It is not an unprimeable number, because it can be changed into a prime (1605051241) 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, 1345924 + ... + 1347115.

It is an arithmetic number, because the mean of its divisors is an integer number (235641000).

Almost surely, 2^1605051244 is an apocalyptic number.

It is an amenable number.

1605051244 is a deficient number, since it is larger than the sum of its proper divisors (1222640756).

1605051244 is a wasteful number, since it uses less digits than its factorization.

1605051244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693192 (or 2693190 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1605051244 is about 40063.0907943958. The cubic root of 1605051244 is about 1170.8366295550.

The spelling of 1605051244 in words is "one billion, six hundred five million, fifty-one thousand, two hundred forty-four".