1602240644 has 12 divisors (see below), whose sum is σ = 2813901468. Its totient is φ = 798268800.

The previous prime is 1602240643. The next prime is 1602240707. The reversal of 1602240644 is 4460422061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 868480900 + 733759744 = 29470^2 + 27088^2 .

It is not an unprimeable number, because it can be changed into a prime (1602240641) 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, 711617 + ... + 713864.

It is an arithmetic number, because the mean of its divisors is an integer number (234491789).

Almost surely, 2^1602240644 is an apocalyptic number.

It is an amenable number.

1602240644 is a deficient number, since it is larger than the sum of its proper divisors (1211660824).

1602240644 is a wasteful number, since it uses less digits than its factorization.

1602240644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425766 (or 1425764 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 1602240644 is about 40027.9982512241. The cubic root of 1602240644 is about 1170.1528141891.

The spelling of 1602240644 in words is "one billion, six hundred two million, two hundred forty thousand, six hundred forty-four".