980440 has 32 divisors (see below), whose sum is σ = 2234880. Its totient is φ = 387072.

The previous prime is 980431. The next prime is 980449. The reversal of 980440 is 44089.

980440 = 240² + 241² + ... + 255².

It is an interprime number because it is at equal distance from previous prime (980431) and next prime (980449).

It is a super-2 number, since 2×980440² = 1922525187200, which contains 22 as substring.

It is a plaindrome in base 7 and base 15.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980449) 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, 4984 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (69840).

2⁹⁸⁰⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

980440 is an abundant number, since it is smaller than the sum of its proper divisors (1254440).

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

980440 is a wasteful number, since it uses less digits than its factorization.

980440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 980440 is about 990.1717022820. The cubic root of 980440 is about 99.3437021542.

The spelling of 980440 in words is "nine hundred eighty thousand, four hundred forty".