222019749 has 24 divisors (see below), whose sum is σ = 369408000. Its totient is φ = 125864928.

The previous prime is 222019747. The next prime is 222019753. The reversal of 222019749 is 947910222.

222019749 = T₂₁₄ + T₂₁₅ + ... + T₁₁₀₂.

222019749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222019749 - 2¹ = 222019747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222019741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5874 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (15392000).

Almost surely, 2^222019749 is an apocalyptic number.

It is an amenable number.

222019749 is a deficient number, since it is larger than the sum of its proper divisors (147388251).

222019749 is a wasteful number, since it uses less digits than its factorization.

222019749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27889 (or 27886 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 222019749 is about 14900.3271440596. The cubic root of 222019749 is about 605.5228492481.

The spelling of 222019749 in words is "two hundred twenty-two million, nineteen thousand, seven hundred forty-nine".