421266616 has 16 divisors (see below), whose sum is σ = 790693200. Its totient is φ = 210415104.

The previous prime is 421266577. The next prime is 421266619. The reversal of 421266616 is 616662124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421266619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18921 + ... + 34648.

It is an arithmetic number, because the mean of its divisors is an integer number (49418325).

Almost surely, 2^421266616 is an apocalyptic number.

It is an amenable number.

421266616 is a deficient number, since it is larger than the sum of its proper divisors (369426584).

421266616 is a wasteful number, since it uses less digits than its factorization.

421266616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54558 (or 54554 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 421266616 is about 20524.7805347585. The cubic root of 421266616 is about 749.6393027059.

The spelling of 421266616 in words is "four hundred twenty-one million, two hundred sixty-six thousand, six hundred sixteen".