2215554240 has 112 divisors (see below), whose sum is σ = 7448226912. Its totient is φ = 556056576.

The previous prime is 2215554239. The next prime is 2215554241. The reversal of 2215554240 is 424555122.

It is an interprime number because it is at equal distance from previous prime (2215554239) and next prime (2215554241).

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 = 2215554198 and 2215554207.

It is not an unprimeable number, because it can be changed into a prime (2215554241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51559 + ... + 84198.

It is an arithmetic number, because the mean of its divisors is an integer number (66502026).

Almost surely, 2^2215554240 is an apocalyptic number.

2215554240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215554240 is an abundant number, since it is smaller than the sum of its proper divisors (5232672672).

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

2215554240 is a wasteful number, since it uses less digits than its factorization.

2215554240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135794 (or 135784 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2215554240 is about 47069.6743137235. The cubic root of 2215554240 is about 1303.6493593464.

The spelling of 2215554240 in words is "two billion, two hundred fifteen million, five hundred fifty-four thousand, two hundred forty".