3450140 has 12 divisors (see below), whose sum is σ = 7245336. Its totient is φ = 1380048.

The previous prime is 3450137. The next prime is 3450149. The reversal of 3450140 is 410543.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3450149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86234 + ... + 86273.

It is an arithmetic number, because the mean of its divisors is an integer number (603778).

Almost surely, 2^3450140 is an apocalyptic number.

It is an amenable number.

3450140 is an abundant number, since it is smaller than the sum of its proper divisors (3795196).

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

3450140 is a wasteful number, since it uses less digits than its factorization.

3450140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172516 (or 172514 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3450140 is about 1857.4552484515. The cubic root of 3450140 is about 151.1050246651.

Adding to 3450140 its reverse (410543), we get a palindrome (3860683).

The spelling of 3450140 in words is "three million, four hundred fifty thousand, one hundred forty".