2405944 has 8 divisors (see below), whose sum is σ = 4511160. Its totient is φ = 1202968.

The previous prime is 2405929. The next prime is 2405971. The reversal of 2405944 is 4495042.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2405944² = 11577133062272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150364 + ... + 150379.

It is an arithmetic number, because the mean of its divisors is an integer number (563895).

2^2405944 is an apocalyptic number.

It is an amenable number.

2405944 is a deficient number, since it is larger than the sum of its proper divisors (2105216).

2405944 is a wasteful number, since it uses less digits than its factorization.

2405944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300749 (or 300745 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2405944 is about 1551.1105698821. The cubic root of 2405944 is about 133.9970297107.

The spelling of 2405944 in words is "two million, four hundred five thousand, nine hundred forty-four".