1493034478 has 32 divisors (see below), whose sum is σ = 2545431840. Its totient is φ = 651110400.

The previous prime is 1493034467. The next prime is 1493034511. The reversal of 1493034478 is 8744303941.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194326 + ... + 201862.

It is an arithmetic number, because the mean of its divisors is an integer number (79544745).

Almost surely, 2^1493034478 is an apocalyptic number.

1493034478 is a deficient number, since it is larger than the sum of its proper divisors (1052397362).

1493034478 is a wasteful number, since it uses less digits than its factorization.

1493034478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7972.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 1493034478 is about 38639.8043214507. The cubic root of 1493034478 is about 1142.9395966954.

The spelling of 1493034478 in words is "one billion, four hundred ninety-three million, thirty-four thousand, four hundred seventy-eight".