1002402000 has 320 divisors, whose sum is σ = 3783686400. Its totient is φ = 252979200.

The previous prime is 1002401999. The next prime is 1002402047. The reversal of 1002402000 is 2042001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1025512 + ... + 1026488.

It is an arithmetic number, because the mean of its divisors is an integer number (11824020).

Almost surely, 2^1002402000 is an apocalyptic number.

1002402000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002402000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1891843200).

1002402000 is an abundant number, since it is smaller than the sum of its proper divisors (2781284400).

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

1002402000 is a wasteful number, since it uses less digits than its factorization.

1002402000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1002402000 is about 31660.7327773695. The cubic root of 1002402000 is about 1000.8000264537.

Adding to 1002402000 its reverse (2042001), we get a palindrome (1004444001).

The spelling of 1002402000 in words is "one billion, two million, four hundred two thousand".