1220914906 has 16 divisors (see below), whose sum is σ = 1901750400. Its totient is φ = 587158768.

The previous prime is 1220914859. The next prime is 1220914913. The reversal of 1220914906 is 6094190221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24766 + ... + 55273.

It is an arithmetic number, because the mean of its divisors is an integer number (118859400).

Almost surely, 2^1220914906 is an apocalyptic number.

1220914906 is a deficient number, since it is larger than the sum of its proper divisors (680835494).

1220914906 is a wasteful number, since it uses less digits than its factorization.

1220914906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80333.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1220914906 is about 34941.5927799521. The cubic root of 1220914906 is about 1068.7967683967.

The spelling of 1220914906 in words is "one billion, two hundred twenty million, nine hundred fourteen thousand, nine hundred six".