2626240 has 56 divisors (see below), whose sum is σ = 6492240. Its totient is φ = 1010688.

The previous prime is 2626229. The next prime is 2626249. The reversal of 2626240 is 426262.

2626240 = T₄₁₁ + T₄₁₂ + ... + T₄₃₉.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2626249) 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, 9139 + ... + 9421.

2^2626240 is an apocalyptic number.

2626240 is a gapful number since it is divisible by the number (20) 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 2626240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3246120).

2626240 is an abundant number, since it is smaller than the sum of its proper divisors (3866000).

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

2626240 is a wasteful number, since it uses less digits than its factorization.

2626240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2626240 is about 1620.5678017288. The cubic root of 2626240 is about 137.9679264536.

Adding to 2626240 its sum of digits (22), we get a palindrome (2626262).

The spelling of 2626240 in words is "two million, six hundred twenty-six thousand, two hundred forty".