2405929 has 2 divisors, whose sum is σ = 2405930. Its totient is φ = 2405928.

The previous prime is 2405917. The next prime is 2405971. The reversal of 2405929 is 9295042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 200704 = 1485^2 + 448^2 .

It is a cyclic number.

It is not a de Polignac number, because 2405929 - 2¹¹ = 2403881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2405929.

It is not a weakly prime, because it can be changed into another prime (2405729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202964 + 1202965.

It is an arithmetic number, because the mean of its divisors is an integer number (1202965).

2^2405929 is an apocalyptic number.

It is an amenable number.

2405929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405929 is an equidigital number, since it uses as much as digits as its factorization.

2405929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 2405929 is about 1551.1057346293. The cubic root of 2405929 is about 133.9967512393.

The spelling of 2405929 in words is "two million, four hundred five thousand, nine hundred twenty-nine".