2542890 has 32 divisors (see below), whose sum is σ = 6975360. Its totient is φ = 581184.

The previous prime is 2542879. The next prime is 2542913. The reversal of 2542890 is 982452.

2542890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 5845 + ... + 6264.

It is an arithmetic number, because the mean of its divisors is an integer number (217980).

2^2542890 is an apocalyptic number.

2542890 is an abundant number, since it is smaller than the sum of its proper divisors (4432470).

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

2542890 is a wasteful number, since it uses less digits than its factorization.

2542890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12126.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2542890 is about 1594.6441609337. The cubic root of 2542890 is about 136.4926266328.

The spelling of 2542890 in words is "two million, five hundred forty-two thousand, eight hundred ninety".