215424452 has 12 divisors (see below), whose sum is σ = 379490496. Its totient is φ = 106998600.

The previous prime is 215424431. The next prime is 215424457. The reversal of 215424452 is 254424512.

It is not an unprimeable number, because it can be changed into a prime (215424457) 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, 177728 + ... + 178935.

It is an arithmetic number, because the mean of its divisors is an integer number (31624208).

Almost surely, 2^215424452 is an apocalyptic number.

It is an amenable number.

215424452 is a deficient number, since it is larger than the sum of its proper divisors (164066044).

215424452 is a wasteful number, since it uses less digits than its factorization.

215424452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356818 (or 356816 counting only the distinct ones).

The product of its digits is 12800, while the sum is 29.

The square root of 215424452 is about 14677.3448552523. The cubic root of 215424452 is about 599.4666111529.

Adding to 215424452 its reverse (254424512), we get a palindrome (469848964).

The spelling of 215424452 in words is "two hundred fifteen million, four hundred twenty-four thousand, four hundred fifty-two".