2258740 has 24 divisors (see below), whose sum is σ = 5175072. Its totient is φ = 821280.

The previous prime is 2258717. The next prime is 2258741. The reversal of 2258740 is 478522.

2258740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2258699 and 2258708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258741) 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, 4914 + ... + 5353.

It is an arithmetic number, because the mean of its divisors is an integer number (215628).

2^2258740 is an apocalyptic number.

2258740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2258740 is an abundant number, since it is smaller than the sum of its proper divisors (2916332).

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

2258740 is a wasteful number, since it uses less digits than its factorization.

2258740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287 (or 10285 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2258740 is about 1502.9105096445. The cubic root of 2258740 is about 131.2065192329.

The spelling of 2258740 in words is "two million, two hundred fifty-eight thousand, seven hundred forty".