3455140 has 48 divisors (see below), whose sum is σ = 7952112. Its totient is φ = 1253376.

The previous prime is 3455113. The next prime is 3455141. The reversal of 3455140 is 415543.

It can be written as a sum of positive squares in 8 ways, for example, as 207936 + 3247204 = 456^2 + 1802^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3455141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25152 + ... + 25288.

It is an arithmetic number, because the mean of its divisors is an integer number (165669).

Almost surely, 2^3455140 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 3455140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3976056).

3455140 is an abundant number, since it is smaller than the sum of its proper divisors (4496972).

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

3455140 is a wasteful number, since it uses less digits than its factorization.

3455140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 3455140 is about 1858.8006886162. The cubic root of 3455140 is about 151.1779840662.

The spelling of 3455140 in words is "three million, four hundred fifty-five thousand, one hundred forty".