415421189 has 4 divisors (see below), whose sum is σ = 417530124. Its totient is φ = 413312256.

The previous prime is 415421179. The next prime is 415421207. The reversal of 415421189 is 981124514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 310358689 + 105062500 = 17617^2 + 10250^2 .

It is a cyclic number.

It is not a de Polignac number, because 415421189 - 2⁸ = 415420933 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 (415421119) 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, 1054172 + ... + 1054565.

It is an arithmetic number, because the mean of its divisors is an integer number (104382531).

Almost surely, 2^415421189 is an apocalyptic number.

It is an amenable number.

415421189 is a deficient number, since it is larger than the sum of its proper divisors (2108935).

415421189 is a wasteful number, since it uses less digits than its factorization.

415421189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108934.

The product of its digits is 11520, while the sum is 35.

The square root of 415421189 is about 20381.8838432565. The cubic root of 415421189 is about 746.1558497492.

The spelling of 415421189 in words is "four hundred fifteen million, four hundred twenty-one thousand, one hundred eighty-nine".