4253621218 has 32 divisors (see below), whose sum is σ = 8066884608. Its totient is φ = 1633909200.

The previous prime is 4253621171. The next prime is 4253621231. The reversal of 4253621218 is 8121263524.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183580 + ... + 205447.

It is an arithmetic number, because the mean of its divisors is an integer number (252090144).

Almost surely, 2^4253621218 is an apocalyptic number.

4253621218 is a deficient number, since it is larger than the sum of its proper divisors (3813263390).

4253621218 is a wasteful number, since it uses less digits than its factorization.

4253621218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389118.

The product of its digits is 23040, while the sum is 34.

The square root of 4253621218 is about 65219.7916126692. The cubic root of 4253621218 is about 1620.2658226090.

The spelling of 4253621218 in words is "four billion, two hundred fifty-three million, six hundred twenty-one thousand, two hundred eighteen".