1427990618 has 8 divisors (see below), whose sum is σ = 2142532512. Its totient is φ = 713813116.

The previous prime is 1427990611. The next prime is 1427990639. The reversal of 1427990618 is 8160997241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1427990611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81080 + ... + 97107.

It is an arithmetic number, because the mean of its divisors is an integer number (267816564).

Almost surely, 2^1427990618 is an apocalyptic number.

1427990618 is a deficient number, since it is larger than the sum of its proper divisors (714541894).

1427990618 is a wasteful number, since it uses less digits than its factorization.

1427990618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182196.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 1427990618 is about 37788.7631181546. The cubic root of 1427990618 is about 1126.0952278630.

The spelling of 1427990618 in words is "one billion, four hundred twenty-seven million, nine hundred ninety thousand, six hundred eighteen".