900478 has 4 divisors (see below), whose sum is σ = 1350720. Its totient is φ = 450238.

The previous prime is 900461. The next prime is 900481. The reversal of 900478 is 874009.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225118 + ... + 225121.

It is an arithmetic number, because the mean of its divisors is an integer number (337680).

2⁹⁰⁰⁴⁷⁸ is an apocalyptic number.

900478 is a deficient number, since it is larger than the sum of its proper divisors (450242).

900478 is a wasteful number, since it uses less digits than its factorization.

900478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450241.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 900478 is about 948.9351927292. The cubic root of 900478 is about 96.5660281734.

It can be divided in two parts, 900 and 478, that added together give a triangular number (1378 = T₅₂).

The spelling of 900478 in words is "nine hundred thousand, four hundred seventy-eight".