2639682 has 16 divisors (see below), whose sum is σ = 5866080. Its totient is φ = 879876.

The previous prime is 2639669. The next prime is 2639699. The reversal of 2639682 is 2869362.

It is a super-2 number, since 2×2639682² = 13935842122248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 2¹³ + 6 + 3⁷ + 9² + 6⁵ + 8⁷ + 2¹⁹ .

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24388 + ... + 24495.

It is an arithmetic number, because the mean of its divisors is an integer number (366630).

2^2639682 is an apocalyptic number.

2639682 is an abundant number, since it is smaller than the sum of its proper divisors (3226398).

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

2639682 is a wasteful number, since it uses less digits than its factorization.

2639682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48894 (or 48888 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 2639682 is about 1624.7098202448. The cubic root of 2639682 is about 138.2029150981.

It can be divided in two parts, 2639 and 682, that added together give a triangular number (3321 = T₈₁).

The spelling of 2639682 in words is "two million, six hundred thirty-nine thousand, six hundred eighty-two".