2445390 has 40 divisors (see below), whose sum is σ = 6577560. Its totient is φ = 651888.

The previous prime is 2445389. The next prime is 2445409. The reversal of 2445390 is 935442.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 700 + ... + 2319.

It is an arithmetic number, because the mean of its divisors is an integer number (164439).

2^2445390 is an apocalyptic number.

2445390 is an abundant number, since it is smaller than the sum of its proper divisors (4132170).

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

2445390 is a wasteful number, since it uses less digits than its factorization.

2445390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2445390 is about 1563.7742803870. The cubic root of 2445390 is about 134.7253676163.

The spelling of 2445390 in words is "two million, four hundred forty-five thousand, three hundred ninety".