1420356407 has 8 divisors (see below), whose sum is σ = 1466156736. Its totient is φ = 1374946272.

The previous prime is 1420356397. The next prime is 1420356433. The reversal of 1420356407 is 7046530241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420356407 is a prime.

It is a super-3 number, since 3×1420356407³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420356107) 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, 90143 + ... + 104720.

It is an arithmetic number, because the mean of its divisors is an integer number (183269592).

Almost surely, 2^1420356407 is an apocalyptic number.

1420356407 is a deficient number, since it is larger than the sum of its proper divisors (45800329).

1420356407 is a wasteful number, since it uses less digits than its factorization.

1420356407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195097.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 1420356407 is about 37687.6160960069. The cubic root of 1420356407 is about 1124.0848938868.

Adding to 1420356407 its reverse (7046530241), we get a palindrome (8466886648).

The spelling of 1420356407 in words is "one billion, four hundred twenty million, three hundred fifty-six thousand, four hundred seven".