1244980 has 24 divisors (see below), whose sum is σ = 2852640. Its totient is φ = 452640.

The previous prime is 1244953. The next prime is 1244987. The reversal of 1244980 is 894421.

1244980 = 178² + 179² + ... + 210².

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244987) 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 7 ways as a sum of consecutive naturals, for example, 2610 + ... + 3049.

It is an arithmetic number, because the mean of its divisors is an integer number (118860).

2^1244980 is an apocalyptic number.

1244980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244980 is an abundant number, since it is smaller than the sum of its proper divisors (1607660).

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

1244980 is a wasteful number, since it uses less digits than its factorization.

1244980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5679 (or 5677 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1244980 is about 1115.7867179708. The cubic root of 1244980 is about 107.5773375341.

Subtracting from 1244980 its product of nonzero digits (2304), we obtain a triangular number (1242676 = T₁₅₇₆).

The spelling of 1244980 in words is "one million, two hundred forty-four thousand, nine hundred eighty".