803642478 has 32 divisors (see below), whose sum is σ = 1627090080. Its totient is φ = 264591360.

The previous prime is 803642453. The next prime is 803642501. The reversal of 803642478 is 874246308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383658 + ... + 385746.

It is an arithmetic number, because the mean of its divisors is an integer number (50846565).

Almost surely, 2^803642478 is an apocalyptic number.

803642478 is an abundant number, since it is smaller than the sum of its proper divisors (823447602).

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

803642478 is a wasteful number, since it uses less digits than its factorization.

803642478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852.

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 803642478 is about 28348.5886421176. The cubic root of 803642478 is about 929.7245409188.

The spelling of 803642478 in words is "eight hundred three million, six hundred forty-two thousand, four hundred seventy-eight".