3545240 has 32 divisors (see below), whose sum is σ = 8030880. Its totient is φ = 1408512.

The previous prime is 3545239. The next prime is 3545249. The reversal of 3545240 is 425453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3545249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10352 + ... + 10688.

It is an arithmetic number, because the mean of its divisors is an integer number (250965).

Almost surely, 2^3545240 is an apocalyptic number.

It is an amenable number.

3545240 is an abundant number, since it is smaller than the sum of its proper divisors (4485640).

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

3545240 is a wasteful number, since it uses less digits than its factorization.

3545240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 3545240 is about 1882.8807715838. The cubic root of 3545240 is about 152.4808181553.

The spelling of 3545240 in words is "three million, five hundred forty-five thousand, two hundred forty".