2221843542 has 16 divisors (see below), whose sum is σ = 4450438080. Its totient is φ = 739489352.

The previous prime is 2221843529. The next prime is 2221843567. The reversal of 2221843542 is 2453481222.

It is a super-3 number, since 3×2221843542³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277008 + ... + 284915.

It is an arithmetic number, because the mean of its divisors is an integer number (278152380).

Almost surely, 2^2221843542 is an apocalyptic number.

2221843542 is an abundant number, since it is smaller than the sum of its proper divisors (2228594538).

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

2221843542 is a wasteful number, since it uses less digits than its factorization.

2221843542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562587.

The product of its digits is 30720, while the sum is 33.

The square root of 2221843542 is about 47136.4353976836. The cubic root of 2221843542 is about 1304.8817520314.

The spelling of 2221843542 in words is "two billion, two hundred twenty-one million, eight hundred forty-three thousand, five hundred forty-two".