2306040040 has 16 divisors (see below), whose sum is σ = 5188590180. Its totient is φ = 922416000.

The previous prime is 2306040001. The next prime is 2306040043. The reversal of 2306040040 is 400406032.

It can be written as a sum of positive squares in 2 ways, for example, as 2303808004 + 2232036 = 47998^2 + 1494^2 .

It is not an unprimeable number, because it can be changed into a prime (2306040043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28825461 + ... + 28825540.

Almost surely, 2^2306040040 is an apocalyptic number.

2306040040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2306040040 is an abundant number, since it is smaller than the sum of its proper divisors (2882550140).

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

2306040040 is a wasteful number, since it uses less digits than its factorization.

2306040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57651012 (or 57651008 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2306040040 is about 48021.2457147875. The cubic root of 2306040040 is about 1321.1606030607.

Adding to 2306040040 its reverse (400406032), we get a palindrome (2706446072).

The spelling of 2306040040 in words is "two billion, three hundred six million, forty thousand, forty".