219340874 has 4 divisors (see below), whose sum is σ = 329011314. Its totient is φ = 109670436.

The previous prime is 219340873. The next prime is 219340879. The reversal of 219340874 is 478043912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 216295849 + 3045025 = 14707^2 + 1745^2 .

It is a super-2 number, since 2×219340874² = 96220838014167752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (219340873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54835217 + ... + 54835220.

Almost surely, 2^219340874 is an apocalyptic number.

219340874 is a deficient number, since it is larger than the sum of its proper divisors (109670440).

219340874 is a wasteful number, since it uses less digits than its factorization.

219340874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109670439.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 219340874 is about 14810.1611740048. The cubic root of 219340874 is about 603.0775889387.

The spelling of 219340874 in words is "two hundred nineteen million, three hundred forty thousand, eight hundred seventy-four".