1427213618 has 16 divisors (see below), whose sum is σ = 2234808576. Its totient is φ = 682302720.

The previous prime is 1427213591. The next prime is 1427213621. The reversal of 1427213618 is 8163127241.

It is a super-2 number, since 2×1427213618² = 4073877422809299848, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 149138 + ... + 158418.

It is an arithmetic number, because the mean of its divisors is an integer number (139675536).

Almost surely, 2^1427213618 is an apocalyptic number.

1427213618 is a deficient number, since it is larger than the sum of its proper divisors (807594958).

1427213618 is a wasteful number, since it uses less digits than its factorization.

1427213618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12649.

The product of its digits is 16128, while the sum is 35.

The square root of 1427213618 is about 37778.4808852871. The cubic root of 1427213618 is about 1125.8909467035.

The spelling of 1427213618 in words is "one billion, four hundred twenty-seven million, two hundred thirteen thousand, six hundred eighteen".