2542040 has 32 divisors (see below), whose sum is σ = 5784480. Its totient is φ = 1005312.

The previous prime is 2542037. The next prime is 2542049. The reversal of 2542040 is 402452.

2542040 = T₈ + T₉ + ... + T₂₄₇.

2542040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542049) by changing a digit.

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, 3812 + ... + 4428.

It is an arithmetic number, because the mean of its divisors is an integer number (180765).

2^2542040 is an apocalyptic number.

2542040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2542040 is an abundant number, since it is smaller than the sum of its proper divisors (3242440).

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

2542040 is a wasteful number, since it uses less digits than its factorization.

2542040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2542040 is about 1594.3776215188. The cubic root of 2542040 is about 136.4774166864.

Adding to 2542040 its reverse (402452), we get a palindrome (2944492).

The spelling of 2542040 in words is "two million, five hundred forty-two thousand, forty".