2012640461 has 8 divisors (see below), whose sum is σ = 2261696640. Its totient is φ = 1777046832.

The previous prime is 2012640457. The next prime is 2012640473. The reversal of 2012640461 is 1640462102.

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

It is a cyclic number.

It is not a de Polignac number, because 2012640461 - 2² = 2012640457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012640461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012640451) 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, 3365321 + ... + 3365918.

It is an arithmetic number, because the mean of its divisors is an integer number (282712080).

Almost surely, 2^2012640461 is an apocalyptic number.

It is an amenable number.

2012640461 is a deficient number, since it is larger than the sum of its proper divisors (249056179).

2012640461 is a wasteful number, since it uses less digits than its factorization.

2012640461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731275.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 2012640461 is about 44862.4616021011. The cubic root of 2012640461 is about 1262.5698079362.

The spelling of 2012640461 in words is "two billion, twelve million, six hundred forty thousand, four hundred sixty-one".