2167222440 has 32 divisors (see below), whose sum is σ = 6501667680. Its totient is φ = 577925952.

The previous prime is 2167222429. The next prime is 2167222451. The reversal of 2167222440 is 442227612.

It is an interprime number because it is at equal distance from previous prime (2167222429) and next prime (2167222451).

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 = 2167222398 and 2167222407.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9029974 + ... + 9030213.

It is an arithmetic number, because the mean of its divisors is an integer number (203177115).

Almost surely, 2^2167222440 is an apocalyptic number.

2167222440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2167222440 is an abundant number, since it is smaller than the sum of its proper divisors (4334445240).

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

2167222440 is a wasteful number, since it uses less digits than its factorization.

2167222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18060201 (or 18060197 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 2167222440 is about 46553.4363930312. The cubic root of 2167222440 is about 1294.0999773847.

The spelling of 2167222440 in words is "two billion, one hundred sixty-seven million, two hundred twenty-two thousand, four hundred forty".