1420406417 has 8 divisors (see below), whose sum is σ = 1430263296. Its totient is φ = 1410584112.

The previous prime is 1420406371. The next prime is 1420406461. The reversal of 1420406417 is 7146040241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1420406417 - 2¹⁴ = 1420390033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420406417.

It is not an unprimeable number, because it can be changed into a prime (1420400417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76688 + ... + 93390.

It is an arithmetic number, because the mean of its divisors is an integer number (178782912).

Almost surely, 2^1420406417 is an apocalyptic number.

It is an amenable number.

1420406417 is a deficient number, since it is larger than the sum of its proper divisors (9856879).

1420406417 is a wasteful number, since it uses less digits than its factorization.

1420406417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17287.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 1420406417 is about 37688.2795707100. The cubic root of 1420406417 is about 1124.0980865441.

Adding to 1420406417 its reverse (7146040241), we get a palindrome (8566446658).

The spelling of 1420406417 in words is "one billion, four hundred twenty million, four hundred six thousand, four hundred seventeen".