1728970478 has 8 divisors (see below), whose sum is σ = 2593759320. Its totient is φ = 864384040.

The previous prime is 1728970457. The next prime is 1728970489. The reversal of 1728970478 is 8740798271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27053 + ... + 64728.

It is an arithmetic number, because the mean of its divisors is an integer number (324219915).

Almost surely, 2^1728970478 is an apocalyptic number.

1728970478 is a deficient number, since it is larger than the sum of its proper divisors (864788842).

1728970478 is an equidigital number, since it uses as much as digits as its factorization.

1728970478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101202.

The product of its (nonzero) digits is 1580544, while the sum is 53.

The square root of 1728970478 is about 41580.8907792991. The cubic root of 1728970478 is about 1200.2246056428.

The spelling of 1728970478 in words is "one billion, seven hundred twenty-eight million, nine hundred seventy thousand, four hundred seventy-eight".