1453222120 has 64 divisors (see below), whose sum is σ = 3747876480. Its totient is φ = 496778496.

The previous prime is 1453222091. The next prime is 1453222189. The reversal of 1453222120 is 212223541.

It is a happy number.

It is a super-2 number, since 2×1453222120² = 4223709060114588800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1453222091 and 1453222100.

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, 89682 + ... + 104638.

It is an arithmetic number, because the mean of its divisors is an integer number (58560570).

Almost surely, 2^1453222120 is an apocalyptic number.

1453222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1453222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1873938240).

1453222120 is an abundant number, since it is smaller than the sum of its proper divisors (2294654360).

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

1453222120 is a wasteful number, since it uses less digits than its factorization.

1453222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15322 (or 15318 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1453222120 is about 38121.1505597614. The cubic root of 1453222120 is about 1132.6889574202.

Adding to 1453222120 its reverse (212223541), we get a palindrome (1665445661).

The spelling of 1453222120 in words is "one billion, four hundred fifty-three million, two hundred twenty-two thousand, one hundred twenty".