3523140 has 108 divisors (see below), whose sum is σ = 11473644. Its totient is φ = 874368.

The previous prime is 3523111. The next prime is 3523141. The reversal of 3523140 is 413253.

3523140 is a `hidden beast` number, since 3 + 523 + 140 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2304324 + 1218816 = 1518^2 + 1104^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3523141) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 95202 + ... + 95238.

Almost surely, 2^3523140 is an apocalyptic number.

3523140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3523140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5736822).

3523140 is an abundant number, since it is smaller than the sum of its proper divisors (7950504).

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

3523140 is a wasteful number, since it uses less digits than its factorization.

3523140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3523140 is about 1877.0029302055. The cubic root of 3523140 is about 152.1633170735.

Adding to 3523140 its reverse (413253), we get a palindrome (3936393).

It can be divided in two parts, 3523 and 140, that added together give a palindrome (3663).

The spelling of 3523140 in words is "three million, five hundred twenty-three thousand, one hundred forty".