902490 has 32 divisors (see below), whose sum is σ = 2203200. Its totient is φ = 236544.

The previous prime is 902483. The next prime is 902501. The reversal of 902490 is 94209.

It is a self number, because there is not a number n which added to its sum of digits gives 902490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1786 + ... + 2234.

It is an arithmetic number, because the mean of its divisors is an integer number (68850).

2⁹⁰²⁴⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 902490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101600).

902490 is an abundant number, since it is smaller than the sum of its proper divisors (1300710).

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

902490 is a wasteful number, since it uses less digits than its factorization.

902490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 902490 is about 949.9947368275. The cubic root of 902490 is about 96.6378960488.

Adding to 902490 its reverse (94209), we get a palindrome (996699).

The spelling of 902490 in words is "nine hundred two thousand, four hundred ninety".