365420881 has 16 divisors (see below), whose sum is σ = 432534400. Its totient is φ = 308523600.

The previous prime is 365420873. The next prime is 365420921. The reversal of 365420881 is 188024563.

It is a happy number.

It is not a de Polignac number, because 365420881 - 2³ = 365420873 is a prime.

It is a super-2 number, since 2×365420881² = 267064840541632322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 365420881.

It is not an unprimeable number, because it can be changed into a prime (365420801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15031 + ... + 30931.

It is an arithmetic number, because the mean of its divisors is an integer number (27033400).

Almost surely, 2^365420881 is an apocalyptic number.

It is an amenable number.

365420881 is a deficient number, since it is larger than the sum of its proper divisors (67113519).

365420881 is an equidigital number, since it uses as much as digits as its factorization.

365420881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15989 (or 15975 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 365420881 is about 19115.9849602368. The cubic root of 365420881 is about 714.9315343508.

The spelling of 365420881 in words is "three hundred sixty-five million, four hundred twenty thousand, eight hundred eighty-one".