1001490280 has 64 divisors (see below), whose sum is σ = 2586672000. Its totient is φ = 341846784.

The previous prime is 1001490271. The next prime is 1001490289. The reversal of 1001490280 is 820941001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1001490271) and next prime (1001490289).

It is not an unprimeable number, because it can be changed into a prime (1001490289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56311 + ... + 71929.

It is an arithmetic number, because the mean of its divisors is an integer number (40416750).

Almost surely, 2^1001490280 is an apocalyptic number.

1001490280 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 1001490280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293336000).

1001490280 is an abundant number, since it is smaller than the sum of its proper divisors (1585181720).

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

1001490280 is a wasteful number, since it uses less digits than its factorization.

1001490280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15866 (or 15862 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1001490280 is about 31646.3312249619. The cubic root of 1001490280 is about 1000.4965134336.

The spelling of 1001490280 in words is "one billion, one million, four hundred ninety thousand, two hundred eighty".