3521490 has 64 divisors (see below), whose sum is σ = 9918720. Its totient is φ = 783360.

The previous prime is 3521489. The next prime is 3521513. The reversal of 3521490 is 941253.

It is a self number, because there is not a number n which added to its sum of digits gives 3521490.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8406 + ... + 8814.

It is an arithmetic number, because the mean of its divisors is an integer number (154980).

Almost surely, 2^3521490 is an apocalyptic number.

3521490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3521490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4959360).

3521490 is an abundant number, since it is smaller than the sum of its proper divisors (6397230).

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

3521490 is a wasteful number, since it uses less digits than its factorization.

3521490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 3521490 is about 1876.5633482513. The cubic root of 3521490 is about 152.1395590359.

The spelling of 3521490 in words is "three million, five hundred twenty-one thousand, four hundred ninety".