1421820696 has 64 divisors (see below), whose sum is σ = 3629455200. Its totient is φ = 464025600.

The previous prime is 1421820679. The next prime is 1421820709. The reversal of 1421820696 is 6960281241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333136 + ... + 337376.

Almost surely, 2^1421820696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421820696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814727600).

1421820696 is an abundant number, since it is smaller than the sum of its proper divisors (2207634504).

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

1421820696 is a wasteful number, since it uses less digits than its factorization.

1421820696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540 (or 4536 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1421820696 is about 37707.0377515922. The cubic root of 1421820696 is about 1124.4710457542.

The spelling of 1421820696 in words is "one billion, four hundred twenty-one million, eight hundred twenty thousand, six hundred ninety-six".