421761016 has 16 divisors (see below), whose sum is σ = 801941040. Its totient is φ = 207910080.

The previous prime is 421760987. The next prime is 421761017. The reversal of 421761016 is 610167124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421761017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370701 + ... + 371836.

It is an arithmetic number, because the mean of its divisors is an integer number (50121315).

Almost surely, 2^421761016 is an apocalyptic number.

It is an amenable number.

421761016 is a deficient number, since it is larger than the sum of its proper divisors (380180024).

421761016 is a wasteful number, since it uses less digits than its factorization.

421761016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742614 (or 742610 counting only the distinct ones).

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

The square root of 421761016 is about 20536.8209808626. The cubic root of 421761016 is about 749.9324478417.

The spelling of 421761016 in words is "four hundred twenty-one million, seven hundred sixty-one thousand, sixteen".