2405916 has 24 divisors (see below), whose sum is σ = 6237840. Its totient is φ = 801936.

The previous prime is 2405881. The next prime is 2405917. The reversal of 2405916 is 6195042.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2405916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11031 + ... + 11246.

It is an arithmetic number, because the mean of its divisors is an integer number (259910).

2^2405916 is an apocalyptic number.

It is an amenable number.

2405916 is an abundant number, since it is smaller than the sum of its proper divisors (3831924).

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

2405916 is a wasteful number, since it uses less digits than its factorization.

2405916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22290 (or 22282 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2405916 is about 1551.1015440647. The cubic root of 2405916 is about 133.9965098965.

It can be divided in two parts, 2405 and 916, that added together give a triangular number (3321 = T₈₁).

The spelling of 2405916 in words is "two million, four hundred five thousand, nine hundred sixteen".