2406224640 has 72 divisors (see below), whose sum is σ = 7684892208. Its totient is φ = 641658880.

The previous prime is 2406224629. The next prime is 2406224641. The reversal of 2406224640 is 464226042.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2406224598 and 2406224607.

It is not an unprimeable number, because it can be changed into a prime (2406224641) 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, 309471 + ... + 317150.

It is an arithmetic number, because the mean of its divisors is an integer number (106734614).

Almost surely, 2^2406224640 is an apocalyptic number.

2406224640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2406224640 is an abundant number, since it is smaller than the sum of its proper divisors (5278667568).

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

2406224640 is an equidigital number, since it uses as much as digits as its factorization.

2406224640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626645 (or 626631 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 2406224640 is about 49053.2836821349. The cubic root of 2406224640 is about 1340.0223951110.

The spelling of 2406224640 in words is "two billion, four hundred six million, two hundred twenty-four thousand, six hundred forty".