1427220164 has 12 divisors (see below), whose sum is σ = 2500019088. Its totient is φ = 712929000.

The previous prime is 1427220143. The next prime is 1427220211. The reversal of 1427220164 is 4610227241.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 165542 + ... + 173949.

It is an arithmetic number, because the mean of its divisors is an integer number (208334924).

Almost surely, 2^1427220164 is an apocalyptic number.

It is an amenable number.

1427220164 is a deficient number, since it is larger than the sum of its proper divisors (1072798924).

1427220164 is a wasteful number, since it uses less digits than its factorization.

1427220164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340546 (or 340544 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 1427220164 is about 37778.5675218106. The cubic root of 1427220164 is about 1125.8926680228.

The spelling of 1427220164 in words is "one billion, four hundred twenty-seven million, two hundred twenty thousand, one hundred sixty-four".