1602644340 has 48 divisors (see below), whose sum is σ = 4895352000. Its totient is φ = 388519680.

The previous prime is 1602644333. The next prime is 1602644353. The reversal of 1602644340 is 434462061.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1602644298 and 1602644307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213465 + ... + 1214784.

It is an arithmetic number, because the mean of its divisors is an integer number (101986500).

Almost surely, 2^1602644340 is an apocalyptic number.

1602644340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1602644340 is an abundant number, since it is smaller than the sum of its proper divisors (3292707660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1602644340 is a wasteful number, since it uses less digits than its factorization.

1602644340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428272 (or 2428270 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1602644340 is about 40033.0406039811. The cubic root of 1602644340 is about 1170.2510820625.

The spelling of 1602644340 in words is "one billion, six hundred two million, six hundred forty-four thousand, three hundred forty".