2445408 has 72 divisors (see below), whose sum is σ = 7954128. Its totient is φ = 698112.

The previous prime is 2445389. The next prime is 2445409. The reversal of 2445408 is 8045442.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1410 + ... + 2622.

It is an arithmetic number, because the mean of its divisors is an integer number (110474).

2^2445408 is an apocalyptic number.

2445408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2445408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3977064).

2445408 is an abundant number, since it is smaller than the sum of its proper divisors (5508720).

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

2445408 is a wasteful number, since it uses less digits than its factorization.

2445408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 2445408 is about 1563.7800356828. The cubic root of 2445408 is about 134.7256981771.

The spelling of 2445408 in words is "two million, four hundred forty-five thousand, four hundred eight".