1465220 has 24 divisors (see below), whose sum is σ = 3130008. Its totient is φ = 576000.

The previous prime is 1465193. The next prime is 1465229. The reversal of 1465220 is 225641.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 174724 + 1290496 = 418^2 + 1136^2 .

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1465192 and 1465201.

It is not an unprimeable number, because it can be changed into a prime (1465229) 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, 620 + ... + 1820.

It is an arithmetic number, because the mean of its divisors is an integer number (130417).

2^1465220 is an apocalyptic number.

1465220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1465220 is an abundant number, since it is smaller than the sum of its proper divisors (1664788).

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

1465220 is a wasteful number, since it uses less digits than its factorization.

1465220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1465220 is about 1210.4627214417. The cubic root of 1465220 is about 113.5797598338.

The spelling of 1465220 in words is "one million, four hundred sixty-five thousand, two hundred twenty".