2405726 has 4 divisors (see below), whose sum is σ = 3608592. Its totient is φ = 1202862.

The previous prime is 2405707. The next prime is 2405729. The reversal of 2405726 is 6275042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6275042 = 2 ⋅3137521.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2405695 and 2405704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601430 + ... + 601433.

It is an arithmetic number, because the mean of its divisors is an integer number (902148).

2^2405726 is an apocalyptic number.

2405726 is a deficient number, since it is larger than the sum of its proper divisors (1202866).

2405726 is a wasteful number, since it uses less digits than its factorization.

2405726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202865.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2405726 is about 1551.0402960594. The cubic root of 2405726 is about 133.9929824795.

The spelling of 2405726 in words is "two million, four hundred five thousand, seven hundred twenty-six".