1478217490 has 32 divisors (see below), whose sum is σ = 2824865280. Its totient is φ = 555012864.

The previous prime is 1478217487. The next prime is 1478217491. The reversal of 1478217490 is 947128741.

It is not an unprimeable number, because it can be changed into a prime (1478217491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52959 + ... + 75901.

It is an arithmetic number, because the mean of its divisors is an integer number (88277040).

Almost surely, 2^1478217490 is an apocalyptic number.

1478217490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1478217490 is a deficient number, since it is larger than the sum of its proper divisors (1346647790).

1478217490 is a wasteful number, since it uses less digits than its factorization.

1478217490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23346.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 1478217490 is about 38447.5940729716. The cubic root of 1478217490 is about 1139.1461468194.

The spelling of 1478217490 in words is "one billion, four hundred seventy-eight million, two hundred seventeen thousand, four hundred ninety".