2393990 has 16 divisors (see below), whose sum is σ = 4415040. Its totient is φ = 934080.

The previous prime is 2393987. The next prime is 2394017. The reversal of 2393990 is 993932.

It is a self number, because there is not a number n which added to its sum of digits gives 2393990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2510 + ... + 3329.

It is an arithmetic number, because the mean of its divisors is an integer number (275940).

2^2393990 is an apocalyptic number.

2393990 is a deficient number, since it is larger than the sum of its proper divisors (2021050).

2393990 is a wasteful number, since it uses less digits than its factorization.

2393990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5887.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 2393990 is about 1547.2524034559. The cubic root of 2393990 is about 133.7747384875.

The spelling of 2393990 in words is "two million, three hundred ninety-three thousand, nine hundred ninety".