2390406 has 16 divisors (see below), whose sum is σ = 4871664. Its totient is φ = 781664.

The previous prime is 2390389. The next prime is 2390411. The reversal of 2390406 is 6040932.

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, 3441 + ... + 4076.

It is an arithmetic number, because the mean of its divisors is an integer number (304479).

2^2390406 is an apocalyptic number.

2390406 is an abundant number, since it is smaller than the sum of its proper divisors (2481258).

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

2390406 is a wasteful number, since it uses less digits than its factorization.

2390406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2390406 is about 1546.0937875821. The cubic root of 2390406 is about 133.7079478827.

The spelling of 2390406 in words is "two million, three hundred ninety thousand, four hundred six".