220402354 has 4 divisors (see below), whose sum is σ = 330603534. Its totient is φ = 110201176.

The previous prime is 220402327. The next prime is 220402363. The reversal of 220402354 is 453204022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453204022 = 2 ⋅226602011.

It can be written as a sum of positive squares in only one way, i.e., 208658025 + 11744329 = 14445^2 + 3427^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55100587 + ... + 55100590.

Almost surely, 2^220402354 is an apocalyptic number.

220402354 is a deficient number, since it is larger than the sum of its proper divisors (110201180).

220402354 is a wasteful number, since it uses less digits than its factorization.

220402354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110201179.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 220402354 is about 14845.9541289875. The cubic root of 220402354 is about 604.0488699987.

Adding to 220402354 its reverse (453204022), we get a palindrome (673606376).

The spelling of 220402354 in words is "two hundred twenty million, four hundred two thousand, three hundred fifty-four".