415044421 has 4 divisors (see below), whose sum is σ = 452775744. Its totient is φ = 377313100.

The previous prime is 415044419. The next prime is 415044449. The reversal of 415044421 is 124440514.

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 a cyclic number.

It is not a de Polignac number, because 415044421 - 2¹ = 415044419 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 (415044401) 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, 18865645 + ... + 18865666.

It is an arithmetic number, because the mean of its divisors is an integer number (113193936).

Almost surely, 2^415044421 is an apocalyptic number.

It is an amenable number.

415044421 is a deficient number, since it is larger than the sum of its proper divisors (37731323).

415044421 is a wasteful number, since it uses less digits than its factorization.

415044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37731322.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 415044421 is about 20372.6390288544. The cubic root of 415044421 is about 745.9302051204.

Adding to 415044421 its reverse (124440514), we get a palindrome (539484935).

The spelling of 415044421 in words is "four hundred fifteen million, forty-four thousand, four hundred twenty-one".