415024221 has 4 divisors (see below), whose sum is σ = 553365632. Its totient is φ = 276682812.

The previous prime is 415024193. The next prime is 415024223. The reversal of 415024221 is 122420514.

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.

It is not a de Polignac number, because 415024221 - 2⁶ = 415024157 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 (415024223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69170701 + ... + 69170706.

It is an arithmetic number, because the mean of its divisors is an integer number (138341408).

Almost surely, 2^415024221 is an apocalyptic number.

It is an amenable number.

415024221 is a deficient number, since it is larger than the sum of its proper divisors (138341411).

415024221 is a wasteful number, since it uses less digits than its factorization.

415024221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138341410.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 415024221 is about 20372.1432598536. The cubic root of 415024221 is about 745.9181035767.

Adding to 415024221 its reverse (122420514), we get a palindrome (537444735).

The spelling of 415024221 in words is "four hundred fifteen million, twenty-four thousand, two hundred twenty-one".