1420602405 has 16 divisors (see below), whose sum is σ = 2276514240. Its totient is φ = 756471168.

The previous prime is 1420602389. The next prime is 1420602409. The reversal of 1420602405 is 5042060241.

It is not a de Polignac number, because 1420602405 - 2⁴ = 1420602389 is a prime.

It is a super-2 number, since 2×1420602405² = 4036222386183568050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420602409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64000 + ... + 83289.

It is an arithmetic number, because the mean of its divisors is an integer number (142282140).

Almost surely, 2^1420602405 is an apocalyptic number.

1420602405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1420602405 is a deficient number, since it is larger than the sum of its proper divisors (855911835).

1420602405 is a wasteful number, since it uses less digits than its factorization.

1420602405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147940.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1420602405 is about 37690.8795997122. The cubic root of 1420602405 is about 1124.1497852694.

Adding to 1420602405 its reverse (5042060241), we get a palindrome (6462662646).

The spelling of 1420602405 in words is "one billion, four hundred twenty million, six hundred two thousand, four hundred five".