2636429240 has 16 divisors (see below), whose sum is σ = 5931965880. Its totient is φ = 1054571680.

The previous prime is 2636429209. The next prime is 2636429261. The reversal of 2636429240 is 429246362.

It is a junction number, because it is equal to n+sod(n) for n = 2636429194 and 2636429203.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 32955326 + ... + 32955405.

Almost surely, 2^2636429240 is an apocalyptic number.

2636429240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2636429240 is an abundant number, since it is smaller than the sum of its proper divisors (3295536640).

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

2636429240 is a wasteful number, since it uses less digits than its factorization.

2636429240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65910742 (or 65910738 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 2636429240 is about 51346.1706459206. The cubic root of 2636429240 is about 1381.4612471073.

The spelling of 2636429240 in words is "two billion, six hundred thirty-six million, four hundred twenty-nine thousand, two hundred forty".