1602421002 has 128 divisors (see below), whose sum is σ = 4457779200. Its totient is φ = 415378368.

The previous prime is 1602421001. The next prime is 1602421057. The reversal of 1602421002 is 2001242061.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1602421001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 287163 + ... + 292689.

It is an arithmetic number, because the mean of its divisors is an integer number (34826400).

Almost surely, 2^1602421002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1602421002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2228889600).

1602421002 is an abundant number, since it is smaller than the sum of its proper divisors (2855358198).

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

1602421002 is a wasteful number, since it uses less digits than its factorization.

1602421002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617 (or 5611 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1602421002 is about 40030.2510858975. The cubic root of 1602421002 is about 1170.1967190594.

Adding to 1602421002 its reverse (2001242061), we get a palindrome (3603663063).

The spelling of 1602421002 in words is "one billion, six hundred two million, four hundred twenty-one thousand, two".