2030405040 has 120 divisors (see below), whose sum is σ = 7115303520. Its totient is φ = 517896192.

The previous prime is 2030405023. The next prime is 2030405059. The reversal of 2030405040 is 405040302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44745 + ... + 77864.

It is an arithmetic number, because the mean of its divisors is an integer number (59294196).

Almost surely, 2^2030405040 is an apocalyptic number.

2030405040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2030405040 is an abundant number, since it is smaller than the sum of its proper divisors (5084898480).

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

2030405040 is a wasteful number, since it uses less digits than its factorization.

2030405040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122651 (or 122642 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2030405040 is about 45060.0159786922. The cubic root of 2030405040 is about 1266.2736244365.

Adding to 2030405040 its reverse (405040302), we get a palindrome (2435445342).

The spelling of 2030405040 in words is "two billion, thirty million, four hundred five thousand, forty".