1451214220 has 24 divisors (see below), whose sum is σ = 3060867600. Its totient is φ = 577948992.

The previous prime is 1451214203. The next prime is 1451214221. The reversal of 1451214220 is 224121541.

It is a junction number, because it is equal to n+sod(n) for n = 1451214191 and 1451214200.

It is not an unprimeable number, because it can be changed into a prime (1451214221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153850 + ... + 163009.

It is an arithmetic number, because the mean of its divisors is an integer number (127536150).

Almost surely, 2^1451214220 is an apocalyptic number.

1451214220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1451214220 is an abundant number, since it is smaller than the sum of its proper divisors (1609653380).

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

1451214220 is a wasteful number, since it uses less digits than its factorization.

1451214220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317097 (or 317095 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1451214220 is about 38094.8056826649. The cubic root of 1451214220 is about 1132.1670426120.

Adding to 1451214220 its reverse (224121541), we get a palindrome (1675335761).

The spelling of 1451214220 in words is "one billion, four hundred fifty-one million, two hundred fourteen thousand, two hundred twenty".