2402090 has 8 divisors (see below), whose sum is σ = 4323780. Its totient is φ = 960832.

The previous prime is 2402089. The next prime is 2402093. The reversal of 2402090 is 902042.

It can be written as a sum of positive squares in 2 ways, for example, as 1957201 + 444889 = 1399^2 + 667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2402093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120095 + ... + 120114.

2^2402090 is an apocalyptic number.

2402090 is a deficient number, since it is larger than the sum of its proper divisors (1921690).

2402090 is a wasteful number, since it uses less digits than its factorization.

2402090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240216.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2402090 is about 1549.8677362924. The cubic root of 2402090 is about 133.9254430423.

The spelling of 2402090 in words is "two million, four hundred two thousand, ninety".