2405089818 has 12 divisors (see below), whose sum is σ = 5211027978. Its totient is φ = 801696600.

The previous prime is 2405089801. The next prime is 2405089823. The reversal of 2405089818 is 8189805042.

It is a happy number.

2405089818 is a `hidden beast` number, since 2 + 40 + 508 + 98 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1830385089 + 574704729 = 42783^2 + 23973^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66808033 + ... + 66808068.

Almost surely, 2^2405089818 is an apocalyptic number.

2405089818 is an abundant number, since it is smaller than the sum of its proper divisors (2805938160).

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

2405089818 is a wasteful number, since it uses less digits than its factorization.

2405089818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133616109 (or 133616106 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 2405089818 is about 49041.7150801234. The cubic root of 2405089818 is about 1339.8117018402.

The spelling of 2405089818 in words is "two billion, four hundred five million, eighty-nine thousand, eight hundred eighteen".