2215349782 has 4 divisors (see below), whose sum is σ = 3323024676. Its totient is φ = 1107674890.

The previous prime is 2215349663. The next prime is 2215349797. The reversal of 2215349782 is 2879435122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2879435122 = 2 ⋅1439717561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553837444 + ... + 553837447.

It is an arithmetic number, because the mean of its divisors is an integer number (830756169).

Almost surely, 2^2215349782 is an apocalyptic number.

2215349782 is a deficient number, since it is larger than the sum of its proper divisors (1107674894).

2215349782 is a wasteful number, since it uses less digits than its factorization.

2215349782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107674893.

The product of its digits is 241920, while the sum is 43.

The square root of 2215349782 is about 47067.5023981515. The cubic root of 2215349782 is about 1303.6092565533.

The spelling of 2215349782 in words is "two billion, two hundred fifteen million, three hundred forty-nine thousand, seven hundred eighty-two".