1464867220 has 48 divisors (see below), whose sum is σ = 3276806400. Its totient is φ = 548155904.

The previous prime is 1464867193. The next prime is 1464867221. The reversal of 1464867220 is 227684641.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1464867221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43881 + ... + 69679.

It is an arithmetic number, because the mean of its divisors is an integer number (68266800).

Almost surely, 2^1464867220 is an apocalyptic number.

1464867220 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 1464867220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638403200).

1464867220 is an abundant number, since it is smaller than the sum of its proper divisors (1811939180).

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

1464867220 is a wasteful number, since it uses less digits than its factorization.

1464867220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25992 (or 25990 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 1464867220 is about 38273.5838405551. The cubic root of 1464867220 is about 1135.7064359555.

The spelling of 1464867220 in words is "one billion, four hundred sixty-four million, eight hundred sixty-seven thousand, two hundred twenty".