3531390 has 32 divisors (see below), whose sum is σ = 8639136. Its totient is φ = 923520.

The previous prime is 3531389. The next prime is 3531403. The reversal of 3531390 is 931353.

It is a self number, because there is not a number n which added to its sum of digits gives 3531390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480 + ... + 2700.

It is an arithmetic number, because the mean of its divisors is an integer number (269973).

Almost surely, 2^3531390 is an apocalyptic number.

3531390 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 3531390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4319568).

3531390 is an abundant number, since it is smaller than the sum of its proper divisors (5107746).

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

3531390 is a wasteful number, since it uses less digits than its factorization.

3531390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284.

The product of its (nonzero) digits is 1215, while the sum is 24.

The square root of 3531390 is about 1879.1992975733. The cubic root of 3531390 is about 152.2819961280.

The spelling of 3531390 in words is "three million, five hundred thirty-one thousand, three hundred ninety".