1244480 has 28 divisors (see below), whose sum is σ = 2964180. Its totient is φ = 497664.

The previous prime is 1244479. The next prime is 1244483. The reversal of 1244480 is 844421.

It can be written as a sum of positive squares in 2 ways, for example, as 678976 + 565504 = 824^2 + 752^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1625 + ... + 2264.

2^1244480 is an apocalyptic number.

1244480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244480 is an abundant number, since it is smaller than the sum of its proper divisors (1719700).

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

1244480 is an equidigital number, since it uses as much as digits as its factorization.

1244480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906 (or 3896 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1244480 is about 1115.5626383131. The cubic root of 1244480 is about 107.5629341244.

The spelling of 1244480 in words is "one million, two hundred forty-four thousand, four hundred eighty".