2406140 has 24 divisors (see below), whose sum is σ = 5512752. Its totient is φ = 874880.

The previous prime is 2406139. The next prime is 2406149. The reversal of 2406140 is 416042.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2406149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5249 + ... + 5688.

It is an arithmetic number, because the mean of its divisors is an integer number (229698).

2^2406140 is an apocalyptic number.

2406140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2406140 is an abundant number, since it is smaller than the sum of its proper divisors (3106612).

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

2406140 is a wasteful number, since it uses less digits than its factorization.

2406140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10957 (or 10955 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2406140 is about 1551.1737491332. The cubic root of 2406140 is about 134.0006682970. Note that the first 3 decimals are identical.

The spelling of 2406140 in words is "two million, four hundred six thousand, one hundred forty".