421122616 has 8 divisors (see below), whose sum is σ = 789604920. Its totient is φ = 210561304.

The previous prime is 421122613. The next prime is 421122629. The reversal of 421122616 is 616221124.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421122613) by changing a digit.

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 as a sum of consecutive naturals, namely, 26320156 + ... + 26320171.

It is an arithmetic number, because the mean of its divisors is an integer number (98700615).

Almost surely, 2^421122616 is an apocalyptic number.

It is an amenable number.

421122616 is a deficient number, since it is larger than the sum of its proper divisors (368482304).

421122616 is a wasteful number, since it uses less digits than its factorization.

421122616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52640333 (or 52640329 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 421122616 is about 20521.2722802462. The cubic root of 421122616 is about 749.5538775004.

The spelling of 421122616 in words is "four hundred twenty-one million, one hundred twenty-two thousand, six hundred sixteen".