3340402020 has 72 divisors (see below), whose sum is σ = 10379711160. Its totient is φ = 869045760.

The previous prime is 3340402003. The next prime is 3340402031. The reversal of 3340402020 is 202040433.

It can be written as a sum of positive squares in 4 ways, for example, as 255488256 + 3084913764 = 15984^2 + 55542^2 .

It is a super-2 number, since 2×3340402020² = 22316571310440160800, which contains 22 as substring.

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 = 3340401984 and 3340402002.

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 23 ways as a sum of consecutive naturals, for example, 218935 + ... + 233694.

It is an arithmetic number, because the mean of its divisors is an integer number (144162655).

Almost surely, 2^3340402020 is an apocalyptic number.

3340402020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3340402020 is an abundant number, since it is smaller than the sum of its proper divisors (7039309140).

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

3340402020 is a wasteful number, since it uses less digits than its factorization.

3340402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452685 (or 452680 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 3340402020 is about 57796.2111214913. The cubic root of 3340402020 is about 1494.8567581986.

Adding to 3340402020 its reverse (202040433), we get a palindrome (3542442453).

The spelling of 3340402020 in words is "three billion, three hundred forty million, four hundred two thousand, twenty".