1420421345 has 8 divisors (see below), whose sum is σ = 1948006464. Its totient is φ = 974003184.

The previous prime is 1420421329. The next prime is 1420421369. The reversal of 1420421345 is 5431240241.

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

It is not a de Polignac number, because 1420421345 - 2⁴ = 1420421329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20291699 + ... + 20291768.

It is an arithmetic number, because the mean of its divisors is an integer number (243500808).

Almost surely, 2^1420421345 is an apocalyptic number.

It is an amenable number.

1420421345 is a deficient number, since it is larger than the sum of its proper divisors (527585119).

1420421345 is an equidigital number, since it uses as much as digits as its factorization.

1420421345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40583479.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1420421345 is about 37688.4776158443. The cubic root of 1420421345 is about 1124.1020244962.

Adding to 1420421345 its reverse (5431240241), we get a palindrome (6851661586).

The spelling of 1420421345 in words is "one billion, four hundred twenty million, four hundred twenty-one thousand, three hundred forty-five".