3391240 has 32 divisors (see below), whose sum is σ = 7695000. Its totient is φ = 1345024.

The previous prime is 3391237. The next prime is 3391301. The reversal of 3391240 is 421933.

It can be written as a sum of positive squares in 4 ways, for example, as 1425636 + 1965604 = 1194^2 + 1402^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5676 + ... + 6244.

Almost surely, 2^3391240 is an apocalyptic number.

It is an amenable number.

3391240 is an abundant number, since it is smaller than the sum of its proper divisors (4303760).

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

3391240 is a wasteful number, since it uses less digits than its factorization.

3391240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3391240 is about 1841.5319709416. The cubic root of 3391240 is about 150.2402077223.

The spelling of 3391240 in words is "three million, three hundred ninety-one thousand, two hundred forty".