365416421 has 4 divisors (see below), whose sum is σ = 366945600. Its totient is φ = 363887244.

The previous prime is 365416409. The next prime is 365416453. The reversal of 365416421 is 124614563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124614563 = 3659 ⋅34057.

It is a cyclic number.

It is not a de Polignac number, because 365416421 - 2¹⁰ = 365415397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365416321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764231 + ... + 764708.

It is an arithmetic number, because the mean of its divisors is an integer number (91736400).

Almost surely, 2^365416421 is an apocalyptic number.

It is an amenable number.

365416421 is a deficient number, since it is larger than the sum of its proper divisors (1529179).

365416421 is a wasteful number, since it uses less digits than its factorization.

365416421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529178.

The product of its digits is 17280, while the sum is 32.

The square root of 365416421 is about 19115.8683035849. The cubic root of 365416421 is about 714.9286257343.

The spelling of 365416421 in words is "three hundred sixty-five million, four hundred sixteen thousand, four hundred twenty-one".