421828790 has 8 divisors (see below), whose sum is σ = 759291840. Its totient is φ = 168731512.

The previous prime is 421828789. The next prime is 421828817. The reversal of 421828790 is 97828124.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21091430 + ... + 21091449.

It is an arithmetic number, because the mean of its divisors is an integer number (94911480).

Almost surely, 2^421828790 is an apocalyptic number.

421828790 is a deficient number, since it is larger than the sum of its proper divisors (337463050).

421828790 is a wasteful number, since it uses less digits than its factorization.

421828790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42182886.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 421828790 is about 20538.4709752211. The cubic root of 421828790 is about 749.9726152964.

The spelling of 421828790 in words is "four hundred twenty-one million, eight hundred twenty-eight thousand, seven hundred ninety".