1602945 has 24 divisors (see below), whose sum is σ = 2808000. Its totient is φ = 845856.

The previous prime is 1602943. The next prime is 1602949. The reversal of 1602945 is 5492061.

1602945 is a nontrivial binomial coefficient, being equal to C(1791, 2).

It is not a de Polignac number, because 1602945 - 2¹ = 1602943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1602941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7956 + ... + 8154.

It is an arithmetic number, because the mean of its divisors is an integer number (117000).

2^1602945 is an apocalyptic number.

1602945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1602945 is the 1790-th triangular number.

It is an amenable number.

1602945 is a deficient number, since it is larger than the sum of its proper divisors (1205055).

1602945 is a wasteful number, since it uses less digits than its factorization.

1602945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1602945 is about 1266.0746423493. The cubic root of 1602945 is about 117.0324258142.

The spelling of 1602945 in words is "one million, six hundred two thousand, nine hundred forty-five".