2001279462 has 256 divisors, whose sum is σ = 5505024000. Its totient is φ = 480090240.

The previous prime is 2001279461. The next prime is 2001279479. The reversal of 2001279462 is 2649721002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001279461) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 15758043 + ... + 15758169.

It is an arithmetic number, because the mean of its divisors is an integer number (21504000).

Almost surely, 2^2001279462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001279462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2752512000).

2001279462 is an abundant number, since it is smaller than the sum of its proper divisors (3503744538).

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

2001279462 is a wasteful number, since it uses less digits than its factorization.

2001279462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2001279462 is about 44735.6620829512. The cubic root of 2001279462 is about 1260.1896628074.

The spelling of 2001279462 in words is "two billion, one million, two hundred seventy-nine thousand, four hundred sixty-two".