2405730 has 16 divisors (see below), whose sum is σ = 5773824. Its totient is φ = 641520.

The previous prime is 2405729. The next prime is 2405737. The reversal of 2405730 is 375042.

It is a happy number.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2405697 and 2405706.

It is not an unprimeable number, because it can be changed into a prime (2405737) 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, 40066 + ... + 40125.

It is an arithmetic number, because the mean of its divisors is an integer number (360864).

2^2405730 is an apocalyptic number.

2405730 is an abundant number, since it is smaller than the sum of its proper divisors (3368094).

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

2405730 is a wasteful number, since it uses less digits than its factorization.

2405730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80201.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 2405730 is about 1551.0415855160. The cubic root of 2405730 is about 133.9930567428.

The spelling of 2405730 in words is "two million, four hundred five thousand, seven hundred thirty".