1420021412 has 12 divisors (see below), whose sum is σ = 2510657100. Its totient is φ = 702690816.

The previous prime is 1420021391. The next prime is 1420021469. The reversal of 1420021412 is 2141200241.

It can be written as a sum of positive squares in 2 ways, for example, as 472366756 + 947654656 = 21734^2 + 30784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1829537 + ... + 1830312.

It is an arithmetic number, because the mean of its divisors is an integer number (209221425).

Almost surely, 2^1420021412 is an apocalyptic number.

It is an amenable number.

1420021412 is a deficient number, since it is larger than the sum of its proper divisors (1090635688).

1420021412 is a wasteful number, since it uses less digits than its factorization.

1420021412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659950 (or 3659948 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1420021412 is about 37683.1714695035. The cubic root of 1420021412 is about 1123.9965140911.

Adding to 1420021412 its reverse (2141200241), we get a palindrome (3561221653).

The spelling of 1420021412 in words is "one billion, four hundred twenty million, twenty-one thousand, four hundred twelve".