215103448 has 32 divisors (see below), whose sum is σ = 488052000. Its totient is φ = 86764032.

The previous prime is 215103409. The next prime is 215103481. The reversal of 215103448 is 844301512.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112023 + ... + 113926.

It is an arithmetic number, because the mean of its divisors is an integer number (15251625).

Almost surely, 2^215103448 is an apocalyptic number.

215103448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

215103448 is an abundant number, since it is smaller than the sum of its proper divisors (272948552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215103448 is a wasteful number, since it uses less digits than its factorization.

215103448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225979 (or 225975 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 215103448 is about 14666.4054219158. The cubic root of 215103448 is about 599.1687080473.

The spelling of 215103448 in words is "two hundred fifteen million, one hundred three thousand, four hundred forty-eight".