2639912 has 32 divisors (see below), whose sum is σ = 5464800. Its totient is φ = 1185600.

The previous prime is 2639911. The next prime is 2639921. The reversal of 2639912 is 2199362.

It is not an unprimeable number, because it can be changed into a prime (2639911) 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, 11414 + ... + 11642.

It is an arithmetic number, because the mean of its divisors is an integer number (170775).

2^2639912 is an apocalyptic number.

2639912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2639912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2732400).

2639912 is an abundant number, since it is smaller than the sum of its proper divisors (2824888).

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

2639912 is a wasteful number, since it uses less digits than its factorization.

2639912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 373 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 2639912 is about 1624.7806005735. The cubic root of 2639912 is about 138.2069289336.

The spelling of 2639912 in words is "two million, six hundred thirty-nine thousand, nine hundred twelve".