1420355 has 8 divisors (see below), whose sum is σ = 1728864. Its totient is φ = 1120000.

The previous prime is 1420303. The next prime is 1420357. The reversal of 1420355 is 5530241.

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

It is not a de Polignac number, because 1420355 - 2⁶ = 1420291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420357) 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, 1646 + ... + 2355.

It is an arithmetic number, because the mean of its divisors is an integer number (216108).

2^1420355 is an apocalyptic number.

1420355 is a deficient number, since it is larger than the sum of its proper divisors (308509).

1420355 is an equidigital number, since it uses as much as digits as its factorization.

1420355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1420355 is about 1191.7864741639. The cubic root of 1420355 is about 112.4084522715.

Adding to 1420355 its reverse (5530241), we get a palindrome (6950596).

It can be divided in two parts, 1420 and 355, that multiplied together give a square (504100 = 710²).

The spelling of 1420355 in words is "one million, four hundred twenty thousand, three hundred fifty-five".