1420100816 has 10 divisors (see below), whose sum is σ = 2751445362. Its totient is φ = 710050400.

The previous prime is 1420100807. The next prime is 1420100827. The reversal of 1420100816 is 6180010241.

It can be written as a sum of positive squares in only one way, i.e., 979940416 + 440160400 = 31304^2 + 20980^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1420100791 and 1420100800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44378135 + ... + 44378166.

Almost surely, 2^1420100816 is an apocalyptic number.

1420100816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1420100816 is a deficient number, since it is larger than the sum of its proper divisors (1331344546).

1420100816 is an equidigital number, since it uses as much as digits as its factorization.

1420100816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88756309 (or 88756303 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1420100816 is about 37684.2250285182. The cubic root of 1420100816 is about 1124.0174640465.

The spelling of 1420100816 in words is "one billion, four hundred twenty million, one hundred thousand, eight hundred sixteen".