1420001606 has 4 divisors (see below), whose sum is σ = 2130002412. Its totient is φ = 710000802.

The previous prime is 1420001603. The next prime is 1420001657. The reversal of 1420001606 is 6061000241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6061000241 = 677 ⋅8952733.

It is a super-2 number, since 2×1420001606² = 4032809122085158472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420001603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355000400 + ... + 355000403.

It is an arithmetic number, because the mean of its divisors is an integer number (532500603).

Almost surely, 2^1420001606 is an apocalyptic number.

1420001606 is a deficient number, since it is larger than the sum of its proper divisors (710000806).

1420001606 is an equidigital number, since it uses as much as digits as its factorization.

1420001606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710000805.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1420001606 is about 37682.9086722349. The cubic root of 1420001606 is about 1123.9912883533.

Adding to 1420001606 its reverse (6061000241), we get a palindrome (7481001847).

The spelling of 1420001606 in words is "one billion, four hundred twenty million, one thousand, six hundred six".