365661340 has 48 divisors (see below), whose sum is σ = 839028960. Its totient is φ = 132756480.

The previous prime is 365661299. The next prime is 365661341. The reversal of 365661340 is 43166563.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 365661296 and 365661305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365661341) 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, 226456 + ... + 228064.

It is an arithmetic number, because the mean of its divisors is an integer number (17479770).

Almost surely, 2^365661340 is an apocalyptic number.

It is an amenable number.

365661340 is an abundant number, since it is smaller than the sum of its proper divisors (473367620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

365661340 is a wasteful number, since it uses less digits than its factorization.

365661340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662 (or 2660 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 365661340 is about 19122.2734004093. The cubic root of 365661340 is about 715.0883161484.

The spelling of 365661340 in words is "three hundred sixty-five million, six hundred sixty-one thousand, three hundred forty".