1420620215 has 64 divisors (see below), whose sum is σ = 2213360640. Its totient is φ = 851834880.

The previous prime is 1420620209. The next prime is 1420620233. The reversal of 1420620215 is 5120260241.

It is a happy number.

It is not a de Polignac number, because 1420620215 - 2⁶ = 1420620151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 597980 + ... + 600350.

It is an arithmetic number, because the mean of its divisors is an integer number (34583760).

Almost surely, 2^1420620215 is an apocalyptic number.

1420620215 is a deficient number, since it is larger than the sum of its proper divisors (792740425).

1420620215 is a wasteful number, since it uses less digits than its factorization.

1420620215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1420620215 is about 37691.1158630253. The cubic root of 1420620215 is about 1124.1544830474.

Adding to 1420620215 its reverse (5120260241), we get a palindrome (6540880456).

The spelling of 1420620215 in words is "one billion, four hundred twenty million, six hundred twenty thousand, two hundred fifteen".