421548016 has 40 divisors (see below), whose sum is σ = 831134304. Its totient is φ = 207083520.

The previous prime is 421547989. The next prime is 421548037. The reversal of 421548016 is 610845124.

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 7 ways as a sum of consecutive naturals, for example, 491460 + ... + 492316.

Almost surely, 2^421548016 is an apocalyptic number.

It is an amenable number.

421548016 is a deficient number, since it is larger than the sum of its proper divisors (409586288).

421548016 is a wasteful number, since it uses less digits than its factorization.

421548016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 421548016 is about 20531.6345184693. The cubic root of 421548016 is about 749.8061816206.

The spelling of 421548016 in words is "four hundred twenty-one million, five hundred forty-eight thousand, sixteen".