1002073320 has 48 divisors (see below), whose sum is σ = 3256739460. Its totient is φ = 267219456.

The previous prime is 1002073309. The next prime is 1002073327. The reversal of 1002073320 is 233702001.

It can be written as a sum of positive squares in 2 ways, for example, as 941139684 + 60933636 = 30678^2 + 7806^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1002073293 and 1002073302.

It is not an unprimeable number, because it can be changed into a prime (1002073327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1391409 + ... + 1392128.

Almost surely, 2^1002073320 is an apocalyptic number.

1002073320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002073320 is an abundant number, since it is smaller than the sum of its proper divisors (2254666140).

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

1002073320 is a wasteful number, since it uses less digits than its factorization.

1002073320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783554 (or 2783547 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 1002073320 is about 31655.5416949387. The cubic root of 1002073320 is about 1000.6906295876.

Adding to 1002073320 its reverse (233702001), we get a palindrome (1235775321).

The spelling of 1002073320 in words is "one billion, two million, seventy-three thousand, three hundred twenty".