2040305402 has 8 divisors (see below), whose sum is σ = 3060811476. Its totient is φ = 1020034912.

The previous prime is 2040305401. The next prime is 2040305431. The reversal of 2040305402 is 2045030402.

It can be written as a sum of positive squares in 2 ways, for example, as 2038612801 + 1692601 = 45151^2 + 1301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2040305402² = 8325692266860763208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2040305401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35363 + ... + 73014.

Almost surely, 2^2040305402 is an apocalyptic number.

2040305402 is a deficient number, since it is larger than the sum of its proper divisors (1020506074).

2040305402 is a wasteful number, since it uses less digits than its factorization.

2040305402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117792.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2040305402 is about 45169.7398929859. The cubic root of 2040305402 is about 1268.3284272508.

Adding to 2040305402 its reverse (2045030402), we get a palindrome (4085335804).

The spelling of 2040305402 in words is "two billion, forty million, three hundred five thousand, four hundred two".