2639026 has 8 divisors (see below), whose sum is σ = 4263084. Its totient is φ = 1218000.

The previous prime is 2638973. The next prime is 2639041. The reversal of 2639026 is 6209362.

It can be written as a sum of positive squares in 2 ways, for example, as 2576025 + 63001 = 1605^2 + 251^2 .

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

It is a d-powerful number, because it can be written as 2¹³ + 6³ + 3¹² + 9³ + 0 + 2²¹ + 6⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 2638985 and 2639003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50725 + ... + 50776.

2^2639026 is an apocalyptic number.

2639026 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2639026 is a deficient number, since it is larger than the sum of its proper divisors (1624058).

2639026 is a wasteful number, since it uses less digits than its factorization.

2639026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101516.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 2639026 is about 1624.5079254962. The cubic root of 2639026 is about 138.1914656605.

The spelling of 2639026 in words is "two million, six hundred thirty-nine thousand, twenty-six".