2306218749 has 8 divisors (see below), whose sum is σ = 3105403872. Its totient is φ = 1522256400.

The previous prime is 2306218741. The next prime is 2306218771. The reversal of 2306218749 is 9478126032.

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

It is not a de Polignac number, because 2306218749 - 2³ = 2306218741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2306218749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2306218741) 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, 3805339 + ... + 3805944.

It is an arithmetic number, because the mean of its divisors is an integer number (388175484).

Almost surely, 2^2306218749 is an apocalyptic number.

It is an amenable number.

2306218749 is a deficient number, since it is larger than the sum of its proper divisors (799185123).

2306218749 is a wasteful number, since it uses less digits than its factorization.

2306218749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7611387.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 2306218749 is about 48023.1064072286. The cubic root of 2306218749 is about 1321.1947304229.

It can be divided in two parts, 23062187 and 49, that added together give a triangular number (23062236 = T₆₇₉₁).

The spelling of 2306218749 in words is "two billion, three hundred six million, two hundred eighteen thousand, seven hundred forty-nine".