3538840 has 16 divisors (see below), whose sum is σ = 7962480. Its totient is φ = 1415520.

The previous prime is 3538831. The next prime is 3538859. The reversal of 3538840 is 488353.

It is a super-3 number, since 3×3538840³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44196 + ... + 44275.

It is an arithmetic number, because the mean of its divisors is an integer number (497655).

Almost surely, 2^3538840 is an apocalyptic number.

It is an amenable number.

3538840 is an abundant number, since it is smaller than the sum of its proper divisors (4423640).

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

3538840 is a wasteful number, since it uses less digits than its factorization.

3538840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88482 (or 88478 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 3538840 is about 1881.1804804431. The cubic root of 3538840 is about 152.3890081927.

The spelling of 3538840 in words is "three million, five hundred thirty-eight thousand, eight hundred forty".