1420220502 has 12 divisors (see below), whose sum is σ = 3077144460. Its totient is φ = 473406828.

The previous prime is 1420220449. The next prime is 1420220513. The reversal of 1420220502 is 2050220241.

1420220502 is a `hidden beast` number, since 142 + 0 + 2 + 20 + 502 = 666.

It is a super-2 number, since 2×1420220502² = 4034052548602264008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 78901139 = 1420220502 / (1 + 4 + 2 + 0 + 2 + 2 + 0 + 5 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39450552 + ... + 39450587.

It is an arithmetic number, because the mean of its divisors is an integer number (256428705).

Almost surely, 2^1420220502 is an apocalyptic number.

1420220502 is an abundant number, since it is smaller than the sum of its proper divisors (1656923958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420220502 is a wasteful number, since it uses less digits than its factorization.

1420220502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78901147 (or 78901144 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1420220502 is about 37685.8130070190. The cubic root of 1420220502 is about 1124.0490405312.

Adding to 1420220502 its reverse (2050220241), we get a palindrome (3470440743).

The spelling of 1420220502 in words is "one billion, four hundred twenty million, two hundred twenty thousand, five hundred two".