3340404240 has 40 divisors (see below), whose sum is σ = 10355253888. Its totient is φ = 890774400.

The previous prime is 3340404233. The next prime is 3340404251. The reversal of 3340404240 is 424040433.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×3340404240² = 22316600973219955200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3340404240.

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, 6958936 + ... + 6959415.

Almost surely, 2^3340404240 is an apocalyptic number.

3340404240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3340404240 is an abundant number, since it is smaller than the sum of its proper divisors (7014849648).

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

3340404240 is a wasteful number, since it uses less digits than its factorization.

3340404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13918367 (or 13918361 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 3340404240 is about 57796.2303268993. The cubic root of 3340404240 is about 1494.8570893545.

Adding to 3340404240 its reverse (424040433), we get a palindrome (3764444673).

The spelling of 3340404240 in words is "three billion, three hundred forty million, four hundred four thousand, two hundred forty".