3531740 has 48 divisors (see below), whose sum is σ = 7832160. Its totient is φ = 1336320.

The previous prime is 3531727. The next prime is 3531757. The reversal of 3531740 is 471353.

It is a happy number.

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, 48344 + ... + 48416.

It is an arithmetic number, because the mean of its divisors is an integer number (163170).

Almost surely, 2^3531740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3531740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3916080).

3531740 is an abundant number, since it is smaller than the sum of its proper divisors (4300420).

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

3531740 is a wasteful number, since it uses less digits than its factorization.

3531740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 3531740 is about 1879.2924200347. The cubic root of 3531740 is about 152.2870269080.

The spelling of 3531740 in words is "three million, five hundred thirty-one thousand, seven hundred forty".