2217972750 has 96 divisors (see below), whose sum is σ = 6440013216. Its totient is φ = 506956800.

The previous prime is 2217972739. The next prime is 2217972767. The reversal of 2217972750 is 572797122.

It is a super-3 number, since 3×2217972750³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6574 + ... + 66926.

It is an arithmetic number, because the mean of its divisors is an integer number (67083471).

Almost surely, 2^2217972750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2217972750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3220006608).

2217972750 is an abundant number, since it is smaller than the sum of its proper divisors (4222040466).

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

2217972750 is a wasteful number, since it uses less digits than its factorization.

2217972750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60387 (or 60370 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 2217972750 is about 47095.3580515108. The cubic root of 2217972750 is about 1304.1235435504.

The spelling of 2217972750 in words is "two billion, two hundred seventeen million, nine hundred seventy-two thousand, seven hundred fifty".