220774401 has 24 divisors (see below), whose sum is σ = 338420160. Its totient is φ = 138389856.

The previous prime is 220774363. The next prime is 220774403. The reversal of 220774401 is 104477022.

It is a happy number.

It is not a de Polignac number, because 220774401 - 2²² = 216580097 is a prime.

It is a super-2 number, since 2×220774401² = 97482672273817602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220774403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3175 + ... + 21251.

It is an arithmetic number, because the mean of its divisors is an integer number (14100840).

It is a Proth number, since it is equal to 13475 ⋅ 2¹⁴ + 1 and 13475 < 2¹⁴.

Almost surely, 2^220774401 is an apocalyptic number.

It is an amenable number.

220774401 is a deficient number, since it is larger than the sum of its proper divisors (117645759).

220774401 is a wasteful number, since it uses less digits than its factorization.

220774401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18165 (or 18162 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 220774401 is about 14858.4790944430. The cubic root of 220774401 is about 604.3885642458.

The spelling of 220774401 in words is "two hundred twenty million, seven hundred seventy-four thousand, four hundred one".