215432468 has 6 divisors (see below), whose sum is σ = 377006826. Its totient is φ = 107716232.

The previous prime is 215432429. The next prime is 215432473. The reversal of 215432468 is 864234512.

It can be written as a sum of positive squares in only one way, i.e., 169572484 + 45859984 = 13022^2 + 6772^2 .

It is a super-2 number, since 2×215432468² = 92822296537142048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26929055 + ... + 26929062.

It is an arithmetic number, because the mean of its divisors is an integer number (62834471).

Almost surely, 2^215432468 is an apocalyptic number.

It is an amenable number.

215432468 is a deficient number, since it is larger than the sum of its proper divisors (161574358).

215432468 is a wasteful number, since it uses less digits than its factorization.

215432468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53858121 (or 53858119 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 215432468 is about 14677.6179266256. The cubic root of 215432468 is about 599.4740464970.

The spelling of 215432468 in words is "two hundred fifteen million, four hundred thirty-two thousand, four hundred sixty-eight".