2217538290 has 32 divisors (see below), whose sum is σ = 5805919296. Its totient is φ = 537584960.

The previous prime is 2217538277. The next prime is 2217538357. The reversal of 2217538290 is 928357122.

It is a super-2 number, since 2×2217538290² = 9834952135232248200, which contains 22 as substring.

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, 3359577 + ... + 3360236.

It is an arithmetic number, because the mean of its divisors is an integer number (181434978).

Almost surely, 2^2217538290 is an apocalyptic number.

2217538290 is an abundant number, since it is smaller than the sum of its proper divisors (3588381006).

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

2217538290 is a wasteful number, since it uses less digits than its factorization.

2217538290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6719834.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2217538290 is about 47090.7452691078. The cubic root of 2217538290 is about 1304.0383867311.

The spelling of 2217538290 in words is "two billion, two hundred seventeen million, five hundred thirty-eight thousand, two hundred ninety".