1427990001 has 8 divisors (see below), whose sum is σ = 1904185920. Its totient is φ = 951893712.

The previous prime is 1427989993. The next prime is 1427990009. The reversal of 1427990001 is 1000997241.

It is an interprime number because it is at equal distance from previous prime (1427989993) and next prime (1427990009).

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

It is not a de Polignac number, because 1427990001 - 2³ = 1427989993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1427990009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20220 + ... + 57138.

It is an arithmetic number, because the mean of its divisors is an integer number (238023240).

Almost surely, 2^1427990001 is an apocalyptic number.

It is an amenable number.

1427990001 is a deficient number, since it is larger than the sum of its proper divisors (476195919).

1427990001 is a wasteful number, since it uses less digits than its factorization.

1427990001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49815.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 1427990001 is about 37788.7549543512. The cubic root of 1427990001 is about 1126.0950656769.

The spelling of 1427990001 in words is "one billion, four hundred twenty-seven million, nine hundred ninety thousand, one".