2637240 has 32 divisors (see below), whose sum is σ = 7912080. Its totient is φ = 703232.

The previous prime is 2637221. The next prime is 2637251. The reversal of 2637240 is 427362.

2637240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a d-powerful number, because it can be written as 2⁹ + 6⁵ + 3¹² + 7³ + 2²¹ + 4² + 0 .

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2637240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10869 + ... + 11108.

2^2637240 is an apocalyptic number.

2637240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2637240 is an abundant number, since it is smaller than the sum of its proper divisors (5274840).

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

2637240 is a wasteful number, since it uses less digits than its factorization.

2637240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21991 (or 21987 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 2637240 is about 1623.9581275390. The cubic root of 2637240 is about 138.1602842504.

It can be divided in two parts, 263 and 7240, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 2637240 in words is "two million, six hundred thirty-seven thousand, two hundred forty".