220462001 has 4 divisors (see below), whose sum is σ = 233430372. Its totient is φ = 207493632.

The previous prime is 220461979. The next prime is 220462009. The reversal of 220462001 is 100264022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 185368225 + 35093776 = 13615^2 + 5924^2 .

It is a cyclic number.

It is not a de Polignac number, because 220462001 - 2¹⁸ = 220199857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 12968353 = 220462001 / (2 + 2 + 0 + 4 + 6 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220462009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6484160 + ... + 6484193.

It is an arithmetic number, because the mean of its divisors is an integer number (58357593).

Almost surely, 2^220462001 is an apocalyptic number.

It is an amenable number.

220462001 is a deficient number, since it is larger than the sum of its proper divisors (12968371).

220462001 is a wasteful number, since it uses less digits than its factorization.

220462001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12968370.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 220462001 is about 14847.9628569040. The cubic root of 220462001 is about 604.1033558856.

The spelling of 220462001 in words is "two hundred twenty million, four hundred sixty-two thousand, one".