1002490 has 16 divisors (see below), whose sum is σ = 1910952. Its totient is φ = 377344.

The previous prime is 1002487. The next prime is 1002493. The reversal of 1002490 is 942001.

It is an interprime number because it is at equal distance from previous prime (1002487) and next prime (1002493).

It can be written as a sum of positive squares in 4 ways, for example, as 998001 + 4489 = 999^2 + 67^2 .

It is not an unprimeable number, because it can be changed into a prime (1002493) 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, 2779 + ... + 3118.

2^1002490 is an apocalyptic number.

1002490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002490 is a deficient number, since it is larger than the sum of its proper divisors (908462).

1002490 is a wasteful number, since it uses less digits than its factorization.

1002490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1002490 is about 1001.2442259509. The cubic root of 1002490 is about 100.0829312051.

Adding to 1002490 its reverse (942001), we get a palindrome (1944491).

The spelling of 1002490 in words is "one million, two thousand, four hundred ninety".