724221106 has 32 divisors (see below), whose sum is σ = 1275212160. Its totient is φ = 302064000.

The previous prime is 724221037. The next prime is 724221133. The reversal of 724221106 is 601122427.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79086 + ... + 87766.

It is an arithmetic number, because the mean of its divisors is an integer number (39850380).

Almost surely, 2^724221106 is an apocalyptic number.

724221106 is a deficient number, since it is larger than the sum of its proper divisors (550991054).

724221106 is a wasteful number, since it uses less digits than its factorization.

724221106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8850.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 724221106 is about 26911.3564503910. The cubic root of 724221106 is about 898.0290638953.

The spelling of 724221106 in words is "seven hundred twenty-four million, two hundred twenty-one thousand, one hundred six".