220387274 has 4 divisors (see below), whose sum is σ = 330580914. Its totient is φ = 110193636.

The previous prime is 220387273. The next prime is 220387309. The reversal of 220387274 is 472783022.

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., 131217025 + 89170249 = 11455^2 + 9443^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220387273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55096817 + ... + 55096820.

Almost surely, 2^220387274 is an apocalyptic number.

220387274 is a deficient number, since it is larger than the sum of its proper divisors (110193640).

220387274 is a wasteful number, since it uses less digits than its factorization.

220387274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110193639.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 220387274 is about 14845.4462378199. The cubic root of 220387274 is about 604.0350932784.

The spelling of 220387274 in words is "two hundred twenty million, three hundred eighty-seven thousand, two hundred seventy-four".