2400223618 has 16 divisors (see below), whose sum is σ = 3878203896. Its totient is φ = 1107532800.

The previous prime is 2400223613. The next prime is 2400223619. The reversal of 2400223618 is 8163220042.

It can be written as a sum of positive squares in 4 ways, for example, as 2389938769 + 10284849 = 48887^2 + 3207^2 .

It is a super-2 number, since 2×2400223618² = 11522146832810019848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2400223613) 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, 140130 + ... + 156322.

Almost surely, 2^2400223618 is an apocalyptic number.

2400223618 is a deficient number, since it is larger than the sum of its proper divisors (1477980278).

2400223618 is a wasteful number, since it uses less digits than its factorization.

2400223618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21909.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2400223618 is about 48992.0770941588. The cubic root of 2400223618 is about 1338.9074814444.

The spelling of 2400223618 in words is "two billion, four hundred million, two hundred twenty-three thousand, six hundred eighteen".