2012640403 has 8 divisors (see below), whose sum is σ = 2044481472. Its totient is φ = 1980852456.

The previous prime is 2012640389. The next prime is 2012640449. The reversal of 2012640403 is 3040462102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012640403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012640473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66876 + ... + 92182.

It is an arithmetic number, because the mean of its divisors is an integer number (255560184).

Almost surely, 2^2012640403 is an apocalyptic number.

2012640403 is a deficient number, since it is larger than the sum of its proper divisors (31841069).

2012640403 is a wasteful number, since it uses less digits than its factorization.

2012640403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26561.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2012640403 is about 44862.4609556810. The cubic root of 2012640403 is about 1262.5697958081.

The spelling of 2012640403 in words is "two billion, twelve million, six hundred forty thousand, four hundred three".