2402640305 has 8 divisors (see below), whose sum is σ = 3104950632. Its totient is φ = 1774257408.

The previous prime is 2402640299. The next prime is 2402640349. The reversal of 2402640305 is 5030462042.

2402640305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 37957921 + 2364682384 = 6161^2 + 48628^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2402640305 - 2¹² = 2402636209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18481784 + ... + 18481913.

It is an arithmetic number, because the mean of its divisors is an integer number (388118829).

Almost surely, 2^2402640305 is an apocalyptic number.

It is an amenable number.

2402640305 is a deficient number, since it is larger than the sum of its proper divisors (702310327).

2402640305 is a wasteful number, since it uses less digits than its factorization.

2402640305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36963715.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2402640305 is about 49016.7349483827. The cubic root of 2402640305 is about 1339.3566944422.

The spelling of 2402640305 in words is "two billion, four hundred two million, six hundred forty thousand, three hundred five".